incubus dvd backup questions

[deh707]

this 7.08 dvd9 will require a lot of compression, because it is a concert/music videos dvd and i want to keep everything.

now, the main movie (which is the concert), has 2 audio streams:

1. LPCM 2ch-English (573mb)
2. AC3 5.1 5ch-English (166mb)

which should i keep? i know that the pcm is uncompressed audio (wav), which is supposed to sound better, but it's 2channel, and the ac3 is 5.1 channels (and smaller filesize). is there a big difference in audio quality?

i think ac3 audio is ment for movies, and pcm for loud concerts.

[jimmalenko]

It would depend on what playback devices (surround sound etc) you have. I only have a TV so I'm not going to hear the diffference in audio. Based on that, I would keep the AC3 5.1 so that there is more bitrate available for the video. Why not just play the DVD, and listen for yourself ?

[shelbyGT]

I have the same dvd, and I backe dup with just the LPCM track. I felt, on my system, that this produced the better sound regardless of it not being true "surround".

To each their own, determine on your own which one you like.

[yoda313]

Hello,

ac3 audio is ment for movies, and pcm for loud concerts.

Anything on dvd can have either format... It's what the producers want to put on the disc.

I have a Phil Collins concert dvd "Live and Loose in Paris" that has a 5.0 and pcm track. I personally love the 5.0 track (I have auto format decode on my Sony Digital receiver and extracts the bass quite well even without a true "LFE" channel.

The pcm track is probably "Crisper" in that it's stereo only. But I like the surround track because it envelopes you more.

Probably if you want to improve your picture use the smaller surround track so you can squeeze out a better picture when you shrink it.

Kevin