Sloooooow audio and blocky MPEG-4 with Nero Recode

[sujaikumar]

Hi everyone,

I am using Nero Recode (latest version) to convert a captured 720 x 480
8mbps MPEG-2 file to a full resolution (720 x 480) 2mbps MPEG-4 file.

The output I get is occasionally blocky, and frequently turns green
(for a few seconds, then snaps back to regular color), and the audio is
veeeeeerrrrrrryyyyyyy sloooooooooooooooooooooooow.

None of these problems happen when I try to compress to a smaller
resolution (352x240)

So my first thought was that this was a machine limitation (I was doing
it on a 4 year old Pentium IV 1.7 GHz with 256 MB RAM), but when I
tried it on a new Dell Optiplex GX620 with a 3GHz PIV, and 1 GB of RAM,
I still had the same problems (it was better though - the green stuff
lasted only a fraction of a second, but the sound was still slowed
down).

Questions for all you good folks with Nero Recode out there -

1. Have you had this problem?

2. If you have successfully made full resolution MPEG-4 files using
Recode, what processors do you have? Since the conversion is not
happening in realtime, I would have imagined ANY processor would do
this fine, but it would just take longer with slower/ older processors.

Thanks very much in advance for your help.

- Sujai

[Soopafresh]

Just guessing, but I think it is your software decoders. Try the latest ffdshow and see if it fixes it.

Also, try a different profile, and see if anything changes.

Here's a clip I just made in Nero Recode. See how it plays on your system.

1800bps.mp4

[sujaikumar]

Just guessing, but I think it is your software decoders. Try the latest ffdshow and see if it fixes it.

Thanks for the link to ffdshow. That was helpful in getting the files to play in Windows Media Player (but not Quicktime Player or Realplayer)

Also, try a different profile, and see if anything changes.

Thanks for this tip! I changed the audio profile to MPEG-1 (for the one where I was converting from an MPEG-1 file) and it worked great! You're a lifesaver.

[Soopafresh]

There's a setting in Nero Recode to make the MP4 file compatible with Quicktime Player when you encode it.


Also, sounds like you have too many multimedia players installed. Next time you reinstall Windows, download MediaPlayerClassic, RealAlternative, and QuicktimeAlternative. Also get the latest ffdshow for playback of Divx/Xvid and avc h264 files.

Those apps will allow you to play 95% of the files out there, all without having to install the full Quicktime or RealPlayer.