DVDs with LMCP sound format.

[torex88]

Hi, why does all DVD players play DVD with AC3 or MP3 sound encoded. But only certain DVD players can play the DVDs with LMCP sound format. I happened to have a DVD player that doesn't play DVDs with LMCP sound format. What's do I need to look for when getting a DVD to play DVDs with LMCP format???

[indolikaa]

Good evening! Cornfussed, are we?


LPCM is a 100% 'legal' audio format. So is AC3. MP2 is only considered 'legal' in PAL-land. All DVD players must play LPCM audio streams, else they cannot put the DVD logo on their front panel.

However, you have to master LPCM streams at 48 kHz or they won't be recognized by the player. I guess my first question is, are your streams at 48 kHz, or possibly 44.1 kHz?

[torex88]

Thanks Indolikaa,
You're saying that all DVD player is capable of playing LMCP at 48khz. So does that mean certain recreated DVDs LMCP are wrongly set at 44.1Khz. So the best solution would be for me to reconvert the LMCP back to 48khz. What other Khz is the standard for all DVD players????

[indolikaa]

Thanks Indolikaa,
You're saying that all DVD player is capable of playing LMCP at 48khz. So does that mean certain recreated DVDs LMCP are wrongly set at 44.1Khz. So the best solution would be for me to reconvert the LMCP back to 48khz. What other Khz is the standard for all DVD players????

I'd check and see if that's the case. 44.1 kHz is a very common mistake when it comes to DVD authoring. I do it at least once per month because I'm not paying attention to what I'm doing.

Convert your PCM back to 48 kHz. Unless you have another underlying problem, that will fix it.

I believe 96 kHz is also considered 'DVD Legal' by the DVD Forum...

[ZippyP.]

Hi, why does all DVD players play DVD with AC3 or MP3 sound encoded.

And MP3 is definitely not valid for DVD.

MP2 is valid for PAL but not NTSC.

[freestyler]

24/96 and 16/96 are in the spec but not many authoring apps can make use of them.