Is there anyway to increase the compatibility of an AC3??

[franco]

I am having problems with Nero telling me my DVD files may not be compatible with standalone players and I believe this is down to the AC3 files from a reauthored DVD-R disc causing the problem with Nero.

Is there any software that I could run the AC3 files through in order to tweak them or make them more compatible so they would work OK with Nero??

[vhelp]

Hi Franco,

I don't too much about AC3 and editing them, but have you looked into:

* HeadAC3he

to see if you can change/revise anything ??

Just trying throw in some sugestions.

Good luck,
-vhelp

[BJ_M]

i strongly doubt that a the ac3 in a re-authored dvd is your problem unless you encoded it yourself ..

yes - there is a ac3 stream checker (you got 10-15 grand?)


i am sure you have done something else to cause this -- nero may not be the best tool but you have not given much info on what you did before you got to the nero stage .

[franco]

Hi BJ, The original DVD-R had a very bad menu so I ripped with Decrypter, and then had to split the MPEG up into a number of sections with BBMpeg and re author with a new menu.

I guess BBMpeg could be the culprit, but in all honesty I have no idea and since I think freeware may well have been used for AC3 Audio on the original DVD-R I thought that was likely to be picked upon by Nero as not being compatible.

[BJ_M]

nero can not detect what type of encoder was used for ac3 (i just tried it) and all it can do it determine that the sample rate is wrong (something you should maybe check)

bbmpeg can not split ac3 - so i assume the ac3 was not split but just the mpeg files?

so why split the mpeg at all , if you didnt split the audio - unless you re-encoded the audio also ..


sounds like a home brew dvd -- maybe there is problems with the mpeg file (could be many different things)

[franco]

OK, what sample rate is right then and how can I check it??

After using decrypter I have 1 big mpefg file and 1 big AC3 file. I then remuxed with BBMPEG into smaller sections of about 25 minutes each. The reason I split the MPEG is to have different timelines for re authoring.

The chapters on the original DVD-R made no sense and when I tried to rip this way they were not in chronological order for re authoring. The only way therefore was to demux into 1 big audio and video file and then remux while splitting them into smaller files

[BJ_M]

48khz ..

but what you describe sounds like a big mess now ..

if anything .. rip per chapter and re-assemble those back into correct order ..

without seeing the disk -- its hard to say ..

[franco]

I can assure you it's less of a mess than ripping by chapter. For some reason there were about 50 or 60 chapters listed on these DVD-R discs and they weren't even in chronological order.

Thanks for the correct sample rate.

[BJ_M]

if it were me -- in this case


frame serve the whole mess into vegas , re-edit it in the right order , etc ..

and re-encode it properly .. with a new ac3 track