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  1. Member
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    Hi,

    I am trying to change a divx compressed movie into a vcd but encounter size problems.

    I have FFDSHOW installed, used VirtualDub to change the audio to wav format thinking this might help but no difference to chat abt, then try to encode using TMPGEnc4.0 XPress.

    The smallest I can change the movie too VCD is just under 1.1 GB in size which would then require editing into 2 files an hence 2 disks.

    Is there a way to change a 700mb divx file to VCD an too fit on 1 disk ?

    Any help would be great an appreciated.
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
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    Make a so called XVCD, lower the video bitrate in tmpgenc xpress. See
    https://forum.videohelp.com/viewtopic.php?p=1591057#1591057
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  3. Always Watching guns1inger's Avatar
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    VCD is a pretty fixed format. While there is some discretion regarding bitrate, it is already so low you don't really want to use less than the maximum. Therefore you are stuck with 74 sub-VHS quality minutes on a 650 MB CD, and 80 minutes on a 700 MB CD. If your running time is longer than this, then you have to split it, or put it on a DVD instead.
    Read my blog here.
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  4. I'm a MEGA Super Moderator Baldrick's Avatar
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    To make a XVCD in Tmpgenc xpress,
    Choose VideoCD
    Under Format click MPEG Output and click yes that you want to make videocd that wont follow the standard.
    Set the video bitrate, you will see the output file size under. Set it until it's below around 730 MB for 74 min CD or 790MB for a 80 min CD.
    Encode.
    Add the xvcd mpeg in vcdeasy and author and burn.
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    I will test the xvcd way an see if disk will play on my dvd player.

    I dont really want to split my movies into 2 files n use 2 disks, seems a costly way financially and the cost of dvd/divx players are lowering,

    thanks for your replies, ideas an thoughts

    regards,
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  6. I'm a MEGA Super Moderator Baldrick's Avatar
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    Be sure to set the Output Stream type to: MPEG-1 Video-CD(non-standard) under Format in Tmpgenc Xpress also.
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    works great,

    reduced the bitrate right down to fit 1 cd lol , encoded a few mins, put on a cd rw n tested on the dvd player and picture on the tv was very good

    also noted that the completion time was only just over 2 hours, (if i had continued) not bad since my computer spec is well out of date by 5 years lmao !!

    thanks all
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  8. Banned
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    Originally Posted by usermm
    works great,

    reduced the bitrate right down to fit 1 cd lol , encoded a few mins, put on a cd rw n tested on the dvd player and picture on the tv was very good
    Hmm.... your idea of a "very good" picture and mine would probably be VERY different as I'm very skeptical that at the bit rate you had to use I would consider this to be "very good", but you're the one to please here, not me. You might also look into KVCD (do a web search) which is a non-standard format that does some funky stuff with GOPs and bit rates to squeeze more video onto a CD-R. I'm not a fan of KVCD and those who like it terribly overrate the quality (it is NOT ever "DVD quality", no matter how many people claim so), but you might find it to be OK for your needs.
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    Originally Posted by jman98

    Hmm.... your idea of a "very good" picture and mine would probably be VERY different as I'm very skeptical that at the bit rate you had to use I would consider this to be "very good.

    3 things Jman98....

    1: Of course your idea of a good picture differs to mine, and would differ to every person in the world...hence we can all have an opinion and were not clones of you

    2: You say you are skeptical of the bit rate i used then say you consider this to be very good . Interesting as u dont know what bitrate i used

    3: Thanks for info for kvcd will read up on it
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  10. Member
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    The answer to that would likely to be "no way".

    700 MB DIVX file is a full length movie, probably about 640x400 or so res, right?

    In general, a full length movie is released as VCD on TWO DISCS, and that's at regular VCD standard, 320x200 (or whatever the standard is for MPEG1). So to fit DOUBLE the amount of data you'll have to either half the bitrate, or shrink the res (which would be no longer VCD).

    IMHO, of course.
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  11. Member AlanHK's Avatar
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    Originally Posted by usermm
    works great,
    reduced the bitrate right down to fit 1 cd lol , encoded a few mins, put on a cd rw n tested on the dvd player and picture on the tv was very good

    also noted that the completion time was only just over 2 hours, (if i had continued) not bad since my computer spec is well out of date by 5 years lmao !!

    thanks all
    I assume you don't have a DVD burner.
    To get a higher bit rate and thus better quality image, use the largest capacity CDR you can find compatible with your burner.

    http://www.feurio.com/English/Writerdb/ is a database of CD burner capabilities, though it doesn't list more recent ones.

    Here (Hong Kong) if I look around the computer malls I can find 80, 90 and even 99 minute CDRs. Not all burners can cope with these, but it's worth experimenting. My DVD player has no problem with "99 min" VCDs, and they're only slightly more expensive than 80 min.

    Best way to burn these is to author to an ISO (or cue/bin, etc) and use ImgBurn or FireBurner.
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    Alan your very right i have no dvd burner old comp n lack of funds lol

    will check these larger cdr disks you mentioned

    thanks
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    ok guys Im stumped here ....

    Overnight I decided to encode the whole movie, as my plan still to use 1 cd .

    Checked the file this morning and the file size was not what i selected when applying the settings. The file came out at 883MB not what i selected.

    I then used the new file and again selected it to be just under 650mb but the end result is now 847Mb in size..

    Is there a reason why during the encoding process TPMGEnc changes what I asked it to do and increases the end file size ?....Im abt to give up now, any help would be great.

    thanks
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    just tried again, selected the bitrate n the file size was to be 886Mb but the file ends up at 1gig in size...

    anybody know why the file u end up with isnt the file size it tells u in the settings
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  15. Member mats.hogberg's Avatar
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    Because your source file contains VBR audio? Or you're using VideoCD multiplexing instead of Video CD Non Standard. I'm sure there are other possible reasons too.

    /Mats
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  16. Member AlanHK's Avatar
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    Originally Posted by usermm
    just tried again, selected the bitrate n the file size was to be 886Mb but the file ends up at 1gig in size...

    anybody know why the file u end up with isnt the file size it tells u in the settings
    Not without knowing what your source is.

    Use GSpot on your source file and post a screenshot. (GIF or JPEG, not BMP)

    You may want to change the filename first, to avoid embarrassment.
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    hi,
    im using video cd non standard and and VBR i set @ 0

    2 screenshots, 1 from gspot and 1 from TMPGEnc




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    hers from GSpot the screen shot

    [/img]

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  19. Member AlanHK's Avatar
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    Wiser heads may weigh in later, but in the meantime a few comments

    1) TMPGENC is showing standard MPEG1, 1150 kb/s. I thought the idea was to use non-standard lower rate?

    2) The AVI is 88 minutes long.
    The 847 MB version you mentioned earlier would probably be about right for standard MPEG1. That would fit onto one of the larger capacity CDRs I mentioned earlier.
    The AVI also shows PCM audio. Which is very wasteful of space, but most compatible for conversion, so that shouldn't be a problem.
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    hi alan,

    thanks for reply, with the bitrate on the latest occasion i left it as it appeared...

    on the other occassions i tried to encode this file I did lower the bitrate trying to fit it onto 1 cdr but the end result has always been a larger file than the settings originally showed. On other occassions I just tried to encode it whether for 1 cdr or 2 disks but always same results..a larger file than expected

    Im sure i must be doing something wrong, I just cant see were lol...
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    nobody has any answers ??

    would really love to know a solution here...

    any help greatfully appreciated..
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  22. Member AlanHK's Avatar
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    Originally Posted by usermm
    nobody has any answers ??
    would really love to know a solution here...
    any help greatfully appreciated..
    You could try making an SVCD or perhaps CVD.

    SVCD is MPEG2, bitrate is not fixed, so you could wind it down and still be within spec.
    Most DVD players should play them.

    And just on the off chance: many newer DVD players will play AVI files (as well as MP3, JPEG, etc) , in which case you just make a data disk with the AVI file.
    My DVD player will also play a raw MPEG file burnt as data.

    But if it's all seeming too much of a hassle, it may be time to consider moving on to DVD.
    Early this year I was in a similar situation, bumping into the limits of CDR. Finally I thought it was time to upgrade my burner, as it was taking 20 minutes or so to burn a disk at 4x. I was surprised to find DVD burners were about 1/3 the cost of my old CD burner, and hardly more than a new CD burner. And DVD blanks are dirt cheap too. Also, VCD software is stagnant, while new DVD software appears all the time.
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  23. Member mats.hogberg's Avatar
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    Originally Posted by usermm
    works great,

    reduced the bitrate right down to fit 1 cd lol , encoded a few mins, put on a cd rw n tested on the dvd player and picture on the tv was very good
    Seems like you've already succeeded before - what did you do that time, that you don't do now? I'm pretty confident it's just a matter of setting up TMPGEnc correctly.

    /Mats
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    hi mats,

    same settings as before just playing with the bitrate...

    confused tho as to why I always getting a larger file than what I apply in the settings

    perhaps its time to buy a new pc in the after xmas sales lol (with a dvd burner)
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  25. Member Cornucopia's Avatar
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    If you haven't got a grasp on the relationship between bitrate and filesize, and what all those settings mean and do, you'll probably end up having similar problems with MPEG2 files w/ DVD @ >4.37GB...

    Best to read up and learn it right, right now.

    Scott
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    Let's put it this way...

    bitrate and filesize are intricately linked, but the exact ratio will depend on the codec used. It can be stated that given a constant codec, the higher the bitrate, the bigger the filesize, and vice versa.

    Codec, or the way the video (and audio) are compressed, will determine the ratio of compression (and thus, the relation between bitrate and filesize) but it's NOT an exact relation as different content will compress differently. "Talking head" type videos compress a lot better than high-motion video, for example, and some codecs are better at certain things than others.

    The bitrate calculator will never be "precise", as it doesn't really do a full analysis of your video file (since that would take as long as actually doing the job!) It basically takes your video length, multiply by the "average" ratio and the desired bitrate, and come out with a predicted filesize.

    If you tried it twice and it keeps coming up with a file larger than expected, then you'll just have to use a lower bitrate. Do a little calcluation on how many percent you run over. Say you run over 10%, decrease your bitrate by 12%, and try again. You are aimming to undershoot, not over. It's a matter of experimentation.
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  27. Member
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    Originally Posted by kschang


    The bitrate calculator will never be "precise", as it doesn't really do a full analysis of your video file (since that would take as long as actually doing the job!) It basically takes your video length, multiply by the "average" ratio and the desired bitrate, and come out with a predicted filesize.

    If you tried it twice and it keeps coming up with a file larger than expected, then you'll just have to use a lower bitrate. Do a little calcluation on how many percent you run over. Say you run over 10%, decrease your bitrate by 12%, and try again. You are aimming to undershoot, not over. It's a matter of experimentation.

    thanks for that info, is what i was needing to know ...
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  28. Member Cornucopia's Avatar
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    Don't use TMPGEnc express, but just a hunch tells me that you're using CQ (or similar) encoding.

    Theres:

    1. CBR (constant bitrate)
    2. VBR (variable, based on an AVERAGE target bitrate), 1 pass or multiple passes
    3. CQ (variable, based on a target QUALITY)
    4. possibly some combinations of 2 & 3

    #1 will be almost exactly what you try to set it to encode
    #2 will be very close to target IF you manually control it and use multiple passes
    #2 will be very unpredictable if you do it automaticly or use only 1 pass
    #3 will be very unpredictable (with probably WILD variations)
    #4 ???

    Scott
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