capturing BBC Olympic catch-up videos?

[pauly007]

I'm stuck at the RTMPDump stage.

Is anyone using Windows 7 able to help me run the script? Is there an alternative?

[Bahman]

^Hey,
View this post: https://forum.videohelp.com/threads/348010-capturing-BBC-Olympic-catch-up-videos?p=2179...=1#post2179657

[pauly007]

Hi and thanks for a response but which part of that post you linked to talks about rtmpdump and windows?

[Bahman]

I linked you to use get_iplayer which works via rtmpdump! Post #73!

[karlinhosmg]

Hello,

For Europe, most of the events (>90% I’d say) arerecorded (comments free) and can be accessed without login at http://www.eurovisionsports.tv/london2012/index.html.

But....
I tried for several days now to record athletic events, but itwas impossible, although I used ffmpeg , rtmpdump and Adobe HDS downloader -- theyworked for video links presented in different forums but not for this website.

The apparent problem seems to be the lack of specified fileformat or a different form of segmentation.

For the closing ceremony (http://www.eurovisionsports.tv/london2012/index.html?video_id=7824) the video link is http://culture-f.akamaihd.net/d19m01_1_700@s73516?primaryToken=1344992511_9a4b8b 6e95ab9407516281f058449ed3&v=1.1.12&fp=WIN%2011,3, 300,270&r=GHYKV&g=PKEFXIGFHSRU&primaryToken=?event =d19m01&seek=47543

Do you have any idea for this problem? This blog seems mylast hope J .

Those you mentioned are for recording specific type of streaming!
But this site is using simple Akamai HD HTTP Stream! You can use cache of Opera web browser! It works indeed!
But do you prefer 480p of this site or 720p of BBC or 1080p of NBC?

Have you managed to download videos from nbc? I've tried with flash downloaders addons, jdownloader, web console, wireshark, opera cache...

[pauly007]

I linked you to use get_iplayer which works via rtmpdump! Post #73!

Oh thanks so much. That works really nicely!

Only problem is the FLV file has a ton of empty space after the recording finishes but I expect that is simple enough to fix.

[Bahman]

Have you managed to download videos from nbc? I've tried with flash downloaders addons, jdownloader, web console, wireshark, opera cache...

View this thread: How to download flash video RTMP/RTMPE streams using free software
Read after #545

[Angelical_1]

I'm trying to capture the Rhythmic Gymnastic Final in 720p which is located at...

http://www.bbc.co.uk/sport/olympics/2012/live-video/p00w3312

I've been able to download at 480p and can get RTMPdump to start the 720p stream using the code...

rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/ondemand" -a "ondemand?auth=daEcUcPcecab9apaiarasd5asd6bucccIcy-bqlw.U-bWG-HpmFEpwoGBsEvwJ&aifp=v001&slist=secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/1500kbps/MP/events/p00w36zy_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf" -C O:1 -C O:0 -y "mp4:secure/3200kbps/events/p00w36zy_1344699296329.mp4" -o "720p.flv"

However, as it's 3hrs 07m 30s it will be over 4GB.

I've tried get_iplayer, however, it can't get it to connect to a 720p steam

I'd absolutely love to have the final in 720p, so if anyone can help I'd be very appreciative.

[karlinhosmg]

Do as I, split the competition in several parts. For example, add -A 0 and -B 800 to the code to download the second 0 to 900

[Angelical_1]

Hi karlinhosmg,

Do as I, split the competition in several parts. For example, add -A 0 and -B 800 to the code to download the second 0 to 900

Where do I add "-A 0" and/or "-B 800" to the string I already have into RTMPdump ?

rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/ondemand" -a "ondemand?auth=daEaEd0cXbMcJcMbGbBa5dIbOc0ctctbSdC-bqlzqh-bWG-BqnFJoEpKDvFpxJ&aifp=v001&slist=secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/1500kbps/MP/events/p00w36zy_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf" -C O:1 -C O:0 -y "mp4:secure/3200kbps/events/p00w36zy_1344699296329.mp4" -o "720p2.flv"

I managed to get just over 4gb so I have some. Can I start from where RTMPdump ended with an error

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\...\...\Downloads\RTMP>rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/onde
mand" -a "ondemand?auth=daEcUcPcecab9apaiarasd5asd6bucc cIcy-bqlw.U-bWG-HpmFEpwoG
BsEvwJ&aifp=v001&slist=secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secur
e/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/1500kbps/MP/events/p00w36z
y_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http:
//www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_e
mp.swf" -C O:1 -C O:0 -y "mp4ecure/3200kbps/events/p00w36zy_1344699296329.mp4"
-o "720p2.flv"
RTMPDump v2.4-35-ge0056c5
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
INFO: Connected...
ERROR: rtmp server sent error
ERROR: rtmp server requested close

C:\...\...\Downloads\RTMP>rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/onde
mand" -a "ondemand?auth=daEaEd0cXbMcJcMbGbBa5dIbOc0ctct bSdC-bqlzqh-bWG-BqnFJoEpK
DvFpxJ&aifp=v001&slist=secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secur
e/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/1500kbps/MP/events/p00w36z
y_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http:
//www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_e
mp.swf" -C O:1 -C O:0 -y "mp4ecure/3200kbps/events/p00w36zy_1344699296329.mp4"
-o "720p2.flv"
RTMPDump v2.4-35-ge0056c5
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
INFO: Connected...
Starting download at: 0.000 kB
INFO: Metadata:
INFO: duration 11250.13
INFO: moovPosition 36.00
INFO: width 1280.00
INFO: height 720.00
INFO: videocodecid avc1
INFO: audiocodecid mp4a
INFO: avcprofile 77.00
INFO: avclevel 31.00
INFO: aacaot 2.00
INFO: videoframerate 25.00
INFO: audiosamplerate 44100.00
INFO: audiochannels 2.00
INFO: trackinfo:
INFO: length 11248001.00
INFO: timescale 1000.00
INFO: language eng
INFO: sampledescription:
INFO: sampletype amf0
INFO: length 11250121.00
INFO: timescale 1000.00
INFO: language eng
INFO: sampledescription:
INFO: sampletype avc1
INFO: length 11250139.00
INFO: timescale 1000.00
INFO: language eng
INFO: sampledescription:
INFO: sampletype mp4a
4189096.110 kB / 9810.24 sec (87.2%)
ERROR: RTMP_ReadPacket, failed to read RTMP packet header
4189150.055 kB / 9810.24 sec (87.2%)
INFO: Connection timed out, trying to resume.


Resuming download at: 4189150.055 kB
ERROR: RTMP_ReadPacket, failed to read RTMP packet header
4189150.055 kB / 0.00 sec
INFO: Connection timed out, trying to resume.


ERROR: RTMP_ReadPacket, failed to read RTMP packet header
ERROR: Failed to resume the stream


Download may be incomplete (downloaded about 0.00%), try resuming

C:\...\...\Downloads\RTMP>

Kind Regards Angelical_1

[karlinhosmg]

rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/ondemand" -a "ondemand?auth=daEaEd0cXbMcJcMbGbBa5dIbOc0ctctbSdC-bqlzqh-bWG-BqnFJoEpKDvFpxJ&aifp=v001&slist=secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/1500kbps/MP/events/p00w36zy_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf" -C O:1 -C O:0 -y "mp4:secure/3200kbps/events/p00w36zy_1344699296329.mp4" -A "0" -B "800" -o "720p2.flv"

For example

[quackeroats]

how come everyone seems to be able to download NBC videos and i am
seemingly fraught with issues ?
i can't seem to sniff out any rtmp links for the NBC sites and RTMPdumphelper is not exactly helping

i am going to re-try the instructions.

[Angelical_1]

rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/ondemand" -a "ondemand?auth=daEaEd0cXbMcJcMbGbBa5dIbOc0ctctbSdC-bqlzqh-bWG-BqnFJoEpKDvFpxJ&aifp=v001&slist=secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/1500kbps/MP/events/p00w36zy_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf" -C O:1 -C O:0 -y "mp4:secure/3200kbps/events/p00w36zy_1344699296329.mp4" -A "0" -B "800" -o "720p2.flv"

Sorry, trying to understand...

With the steam having failed at 9810.24 seconds... Will I need to redo the stream or can I enter a string to continue the steam from where it failed?

If it be best to create 2 flv files at 7200 seconds (2hrs) each

1. What would the commands be?
2. Do I type the 2nd command in after the first has finished?
3. Do I have to give each a new filename, or will it add it to the existing one?

Kind Regards Angelical_1

[karlinhosmg]

rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/ondemand" -a "ondemand?auth=daEaEd0cXbMcJcMbGbBa5dIbOc0ctctbSdC-bqlzqh-bWG-BqnFJoEpKDvFpxJ&aifp=v001&slist=secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/1500kbps/MP/events/p00w36zy_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf" -C O:1 -C O:0 -y "mp4:secure/3200kbps/events/p00w36zy_1344699296329.mp4" -A "0" -B "800" -o "720p2.flv"

Sorry, trying to understand...

With the steam having failed at 9810.24 seconds... Will I need to redo the stream or can I enter a string to continue the steam from where it failed?

If it be best to create 2 flv files at 7200 seconds (2hrs) each

1. What would the commands be?
2. Do I type the 2nd command in after the first has finished?
3. Do I have to give each a new filename, or will it add it to the existing one?

Kind Regards Angelical_1

If your download fails at 9810.24, write the same code (you have to update the .xml):

[QUOTE=karlinhosmg;2180519]

rtmpdump -r "rtmp://cp41752.edgefcs.net:1935/ondemand" -a "ondemand?auth=daEaEd0cXbMcJcMbGbBa5dIbOc0ctctbSdC-bqlzqh-bWG-BqnFJoEpKDvFpxJ&aifp=v001&slist=secure/480kbps/MP/events/p00w36zy_1344699296281.mp4;secure/800kbps/MP/events/p00w36zy_1344699296295.mp4;secure/1500kbps/MP/events/p00w36zy_1344699296315.mp4;secure/3200kbps/events/p00w36zy_1344699296329.mp4" -W "http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf" -C O:1 -C O:0 -y "mp4:secure/3200kbps/events/p00w36zy_1344699296329.mp4" -A "9810.24"  -o "720p2.flv"

rtmpdump will download the same video but starting at 9810.24.

Yes, rename the new file. I tried some times to resume the download but always failed so you have to download the video in several parts

[quackeroats]

ffmpeg -i http://www.youtube.com/api/manife
st/hls_playlist/id/016fd0b7d484de1f/itag/95/source/yt_live_broadcast/ratebypass/
yes/cmbypass/yes/playlist_type/CLEAN/maudio/1/pmbypass/yes/upn/7xLLhfZWTNs/sver/
3/ip/173.208.33.244/ipbits/8/expire/1345287156/sparams/ip,ipbits,expire,id,itag,
source,ratebypass,cmbypass,playlist_type,maudio,pmbypass/signature/413FF2FF1E792
91B0E8AD9072F5C6E1E875B6805.10D6175A0FE729320E293A6259A3CB098A99DFDC/key/ck1/fil
e/index.m3u8
ffmpeg version N-35709-g7d531e8, Copyright (c) 2000-2011 the FFmpeg developers
  built on Dec 12 2011 13:50:00 with gcc 4.6.2
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru
ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libope
ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --en
able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger -
-enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwben
c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
libxvid --enable-zlib
  libavutil    51. 32. 0 / 51. 32. 0
  libavcodec   53. 43. 0 / 53. 43. 0
  libavformat  53. 24. 0 / 53. 24. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 53. 0 /  2. 53. 0
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0
[http @ 003090C0] Key 'pb' not found.
[http @ 003090C0] Error parsing options string ,ipbits,expire,id,itag,source,rat
ebypass,cmbypass,playlist_type,maudio,pmbypass/signature/413FF2FF1E79291B0E8AD90
72F5C6E1E875B6805.10D6175A0FE729320E293A6259A3CB098A99DFDC/key/ck1/file/index.m3
u8
http://www.youtube.com/api/manifest/hls_playlist/id/016fd0b7d484de1f/itag/95/sou
rce/yt_live_broadcast/ratebypass/yes/cmbypass/yes/playlist_type/CLEAN/maudio/1/p
mbypass/yes/upn/7xLLhfZWTNs/sver/3/ip/173.208.33.244/ipbits/8/expire/1345287156/
sparams/ip,ipbits,expire,id,itag,source,ratebypass,cmbypass,playlist_type,maudio
,pmbypass/signature/413FF2FF1E79291B0E8AD9072F5C6E1E875B6805.10D6175A0FE729320E2
93A6259A3CB098A99DFDC/key/ck1/file/index.m3u8: Not enough space

anyone has this issue?
URL: http://www.nbcolympics.com/video/judo/mat-b-w-57kg-m-73kg-elim-through-qf.html

[up2spec]

This is a great forum. Thanks to all the contributors!

I have found the get_iplayer to be the easiest method. However I have two problems with it:
1. Even when it gets the flashhigh1 mode, the video is only 640x360.
2. Not all events seem to provide the option of HDS and RTMP, some are HDS only (e.g. http://www.bbc.co.uk/sport/olympics/2012/live-video/p00w2wq0)

Which lead me back to the AdobeHDS.php method. So to make the HDS download an easier task I have written a python script to sniff the network for the HDS manifest URL and alter it to use the high quality 3200kbps (1280x720) version. Then pass this manifest on to AdobeHDS.php which will do all of the heavy lifting (downloading the fragments and assembling into a .flv file).

See attached london_hds_get.zip

[quackeroats]

This is a great forum. Thanks to all the contributors!

I have found the get_iplayer to be the easiest method. However I have two problems with it:
1. Even when it gets the flashhigh1 mode, the video is only 640x360.
2. Not all events seem to provide the option of HDS and RTMP, some are HDS only (e.g. http://www.bbc.co.uk/sport/olympics/2012/live-video/p00w2wq0)

Which lead me back to the AdobeHDS.php method. So to make the HDS download an easier task I have written a python script to sniff the network for the HDS manifest URL and alter it to use the high quality 3200kbps (1280x720) version. Then pass this manifest on to AdobeHDS.php which will do all of the heavy lifting (downloading the fragments and assembling into a .flv file).

See attached london_hds_get.zip

Location: Australia

YAY !!!
erm, sorry how do i use this? i have not tried the adobeHDS method.

[up2spec]

I've only tested this on my Linux machine with PHP 5.x and Python 2.x. I see you are running Windows... it should work with Windows too.

There are some instructions for setting up PHP and AdobeHDS.php on Windows here:
http://stream-recorder.com/forum/adobe-hds-downloader-t12074.html

You'll also need to install Python (grab a 2.x version):
http://www.python.org/getit/

WinPcap 4:
http://www.winpcap.org/install/

and the Python library pcapy:
http://oss.coresecurity.com/projects/pcapy.html

Then you can just run my script as per the instruction (instructions are provided in the file header as comments).

[mikethetv]

This is a great forum. Thanks to all the contributors!

I have found the get_iplayer to be the easiest method. However I have two problems with it:
1. Even when it gets the flashhigh1 mode, the video is only 640x360.

Yes well that is to be expected, the flashhigh mode is only 640x360, you want either flashvhigh or flashhd, see thread post here.

2. Not all events seem to provide the option of HDS and RTMP, some are HDS only (e.g. http://www.bbc.co.uk/sport/olympics/2012/live-video/p00w2wq0)

Worked fine for me, see below:

C:\Program Files (x86)\get_iplayer>get_iplayer http://www.bbc.co.uk/sport/olympi
cs/2012/live-video/p00w2wq0 --mode=flashhd --raw
get_iplayer v2.82, Copyright (C) 2008-2010 Phil Lewis
  This program comes with ABSOLUTELY NO WARRANTY; for details use --warranty.
  This is free software, and you are welcome to redistribute it under certain
  conditions; use --conditions for details.

INFO: Episode-only pid detected
INFO: Trying pid: p00w2wq0 using type: tv
INFO Trying to stream pid using type tv
INFO: pid not found in tv cache
INFO: Checking existence of default version
INFO: flashhd1,flashhd2 modes will be tried for version default
INFO: Trying flashhd1 mode to record tv: Olympic Shooting - London 2012: Men's 1
0m Air Rifle
INFO: File name prefix = Olympic_Shooting_-_London_2012_Mens_10m_Air_Rifle_p00w2
wq0_default
RTMPDump 2.4 git-b627335 2011-7-23
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
INFO: Connected...
Starting download at: 0.000 kB
INFO: Metadata:
INFO:   duration              2872.76
INFO:   moovPosition          36.00
INFO:   width                 1280.00
INFO:   height                720.00
INFO:   videocodecid          avc1
INFO:   audiocodecid          mp4a
INFO:   avcprofile            77.00
INFO:   avclevel              31.00
INFO:   aacaot                2.00
INFO:   videoframerate        25.00
INFO:   audiosamplerate       44100.00
INFO:   audiochannels         2.00
INFO: trackinfo:
INFO:   length                2872001.00
INFO:   timescale             1000.00
INFO:   language              eng
INFO: sampledescription:
INFO:   sampletype            amf0
INFO:   length                2872761.00
INFO:   timescale             1000.00
INFO:   language              eng
INFO: sampledescription:
INFO:   sampletype            avc1
INFO:   length                2872774.00
INFO:   timescale             1000.00
INFO:   language              eng
INFO: sampledescription:
INFO:   sampletype            mp4a
2688.682 kB / 6.60 sec (0.2%)

Which lead me back to the AdobeHDS.php method. So to make the HDS download an easier task I have written a python script to sniff the network for the HDS manifest URL and alter it to use the high quality 3200kbps (1280x720) version. Then pass this manifest on to AdobeHDS.php which will do all of the heavy lifting (downloading the fragments and assembling into a .flv file).

See attached london_hds_get.zip

Just use get_iplayer, much easier.

[spiderMan007]

did any one manage to use rtmpdump from outside uk ? i keep getting this error:

(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
ERROR: RTMP_Connect0, failed to connect socket. 10060 (Unknown error)

it is strange that i can view the video but cant use the rtmpdump ! could you guys help me fix this problem ?thanks

[karlinhosmg]

You have to connect behind UK DNS

[spiderMan007]

You have to connect behind UK DNS

Thanks for reply. why vpn doesnt work with rtmpdump but works for website to play the video ? how to connect behind uk dns ?

[karlinhosmg]

I don't know. When i tried to download the video behind a proxy i had the same problem. You have to search a uk dns, it's easy

[quackeroats]

edit: someone else has answered./

[spiderMan007]

Thanks guys now i get this error after download starts :

ERROR: RTMP_ReadPacket, failed to read RTMP packet body. len: 71310
46654.640 kB / 292.84 sec (3.1%)
Download may be incomplete (downloaded about 3.10%), try resuming

karlinhosmg can you tell me how i can resume or be able to download the whole thing ?only small percentage gets downloaded before i get the above error!

[pauly007]

all was working well with get_iplayer then today I get an error message. Anyone seen this and know a solution?

I enter the command "get_iplayer http://www.bbc.co.uk/sport/olympics/2012/live-video/p00w31zk --raw --mode=best"

And see this error:

INFO: File name prefix = Olympic_Triathlon_-_London_2012_Mens_Triathlon_p00w31zk
_default
RTMPDump 2.4 git-6230845 2011-9-25
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
ERROR: Unexpected start of file, error in tag sizes, couldn't arrive at prevTagS
ize=0
INFO: Command exit code 1 (raw code = 256)
WARNING: Retry recording for 'Olympic Triathlon - London 2012: Men's Triathlon (
p00w31zk)'

[quackeroats]

can i ask, has anyone successfully downloaded 720p from get_iplayer?

[mikethetv]

can i ask, has anyone successfully downloaded 720p from get_iplayer?

Yes all the videos I have downloaded are 1280x720. What's the problem you are having?

[quackeroats]

can i ask, has anyone successfully downloaded 720p from get_iplayer?

Yes all the videos I have downloaded are 1280x720. What's the problem you are having?

i think its connection issues, probably not get_iplayers' fault
it just take a few % then drop off.

is there a "-e" command to like like ffmpeg to make it resume?

[pauly007]

all was working well with get_iplayer then today I get an error message. Anyone seen this and know a solution?

I enter the command "get_iplayer http://www.bbc.co.uk/sport/olympics/2012/live-video/p00w31zk --raw --mode=best"

And see this error:

INFO: File name prefix = Olympic_Triathlon_-_London_2012_Mens_Triathlon_p00w31zk
_default
RTMPDump 2.4 git-6230845 2011-9-25
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
ERROR: Unexpected start of file, error in tag sizes, couldn't arrive at prevTagS
ize=0
INFO: Command exit code 1 (raw code = 256)
WARNING: Retry recording for 'Olympic Triathlon - London 2012: Men's Triathlon (
p00w31zk)'

To answer my own question in case it helps others it seems that if there is a file already in the download directory with the same name this error is produced.