converting *.mpg to *.avi

[JXBlack]

I have some old VCD that I want to convert to *.avi files. I am using VCDGear to convert the *.dat file to *.mpg files. The *.mpg files have good lip sync but when I convert to *.avi the lip sync goes badly off. I have tried ImTOO and Auto GK but both give bad Lip Syncs.

Any Suggestions?

Thanks

[movmasty]

Virtualdub, and use the delay audio in audio-interleaving

[ERQ]

I have always changed just the extension *.dat to *.mpg, never tried VCDGear. For avi convertion used Virtual Dub or Avidemux. I rarely convert VCD mpg files to avi (with recompressing/re-encoding to xvid/x264) due severe loss of picture quality in encoding process.

[dat720]

ERQ: changing the extension of a VCD DAT file does not change the format to a MPG file, it is still a DAT file just with a MPG extension, in saying that it is a quick hack to get most software to recognise them, VCD gear demuxes the DAT container and muxes VCD's back into a proper MPG container, which will fix compatibility with software/hardware that is sticking strictly to the standards.

JXBlack: Is there any reason they have to be AVI's? Converting a already compressed (very inefficiently at that) MPG to an AVI is only going to cause more quality loss, your better off leaving them as MPG's as just about every hardware/software player will play them back anyway.

[movmasty]

I have always changed just the extension *.dat to *.mpg, never tried VCDGear. For avi convertion used Virtual Dub or Avidemux. I rarely convert VCD mpg files to avi (with recompressing/re-encoding to xvid/x264) due severe loss of picture quality in encoding process.
i usually get a picture improvement, by filtering, from mpg1 to avi, and much less size

anyway several mpg1 have a bitrate of 2000kbs or more, some 4000kbs.....

[movmasty]

ERQ: changing the extension of a VCD DAT file does not change the format to a MPG file, it is still a DAT file just with a MPG extension, in saying that it is a quick hack to get most software to recognise them, VCD gear demuxes the DAT container and muxes VCD's back into a proper MPG container, which will fix compatibility with software/hardware that is sticking strictly to the standards.

the fact is that you dont need this to convert to avi,

does the ripping converts vobs into mpeg2??

[movmasty]

i usually get a picture improvement, by filtering, from mpg1 to avi, and much less size

anyway several mpg1 have a bitrate of 2000kbs or more, some 4000kbs.....

and with h264 the advantage increases

[ERQ]

anyway several mpg1 have a bitrate of 2000kbs or more, some 4000kbs.

But not in VCDs it has limited bitrate for mpg1(1150KBit/s).

ERQ: changing the extension of a VCD DAT file does not change the format to a MPG file, it is still a DAT file just with a MPG extension, in saying that it is a quick hack to get most software to recognise them, VCD gear demuxes the DAT container and muxes VCD's back into a proper MPG container, which will fix compatibility with software/hardware that is sticking strictly to the standards.

I know that but I never encountered any hardware or software issue with that. But yes that's the proper way to convert dat's to mpg.

I have tried ImTOO and Auto GK but both give bad Lip Syncs.

Try Virtualdub resync your avi's. http://forum.doom9.org/showthread.php?p=746611#post746611

So in my opinion leave VCD mpgs as mpgs. Don't convert unless you have special need to do so.

[ERQ]

what is h264 ?

It's a video compression standard, x264 video codec is based on that. Just google the term "h264" for more info.

[goodwill221]

H.264 is a standard for video compression, and is equivalent to MPEG-4 Part 10, or MPEG-4 AVC (for Advanced Video Coding).