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Inheritthewind
17th December 2005, 02:16
Firstly, before I get to the point of the post, may I extend my warmest thanks and appreciation to all the contributors at doom9. I've been doing video and audio conversions for about 4 years now, from the early days of VCD and CVD, before moving on to MPEG4 ASP/AVC with MP3 then AAC, and now DVD/AC3. And it's all due to the massive amount of support and wealth of information on this site, that this is only my first post. Once again, thank you all.

I've been running a sort of media centre PC for a while now, with all my videos in .mp4 with aac audio. Lately however, due to extreme pressure from my wife who is fed up with being the only person she knows who has to boot up, log on, navigate and load a file into the correct player if she ever fancies watching a film, I am being forced to re-encode a lot of stuff to DVD.

After a few false starts, everything is going OK. Most of the stuff is transferring well, although the mp4 to DVD conversion is definately the most awkward I've had to do yet, bringing me to the point of posting here a number of times. There are a few videos that just won't process the audio properly.

Many of the aac tracks would cause the encoders to crash (including nero, in which they were originally created), and the only usable method was using graphedit: file.mp4 - ffdshow audio decoder - file writer (file.ac3).

A few of the videos have delays after conversion. Not small ones either, but a few seconds. They play fine through the PC, converting to ac3 on the fly, but go completely out of sync when the ac3 is output to a file.

Can mp4 files contain audio delays, and if so, is there a utility out there to display them? Or is there a way of connecting the AC3filter to file writer in graphedit, as the output from this seems to be consistantly better.

Thank you in advance.