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Topic: Gaps in Roxio DVD Music Discs (Read 4310 times) previous topic - next topic
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Gaps in Roxio DVD Music Discs

I ripped Desperado using EAC. I used these WAV files to make a DVD music disc using Roxio 2009. I selected  lossless pcm for the dvd. When I play the disc on my computer or my Panasonic bluray player there are no gaps between two tracks which should have no gaps (like Abbey Road side 2) . When I play the dvd on any of my other standalone players, there are gaps between these 2 tracks. Is there a setting in Roxio or Eac to eliminate these gaps, or is there some kind of work-around I could use to eliminate these gaps?

Gaps in Roxio DVD Music Discs

Reply #1 –
There's nothing to change in EAC.  It will never add any additional silence to tracks ripped in wave format.  The only possibility that it will cause a problem is if you use the wrong type of cue sheet, but I'm betting you didn't use one (which is ok).  I'd check into the settings in Roxio.

I can't say that I understand why you're hearing gaps when playing the disc in a standalone player but not when playing the disc in your computer.

Gaps in Roxio DVD Music Discs

Reply #2 –
Quote from: greynol on
There's nothing to change in EAC.  It will never add any additional silence to tracks ripped in wave format.  The only possibility that it will cause a problem is if you use the wrong type of cue sheet, but I'm betting you didn't use one (which is ok).  I'd check into the settings in Roxio.

I can't say that I understand why you're hearing gaps when playing the disc in a standalone player but not when playing the disc in your computer.


I can't understand that either. I hoped there would be something similar to disc at once that would caused these gaps not to be read by the dvd player.
 

Gaps in Roxio DVD Music Discs

Reply #4 –
I'm sorry. I didn't mean to imply that EAC added the gaps. These are the gaps that are on the cd between tracks, but you don't hear them when using disc at once. I haven't tried using a different software to burn the dvd.  I will try that. Thanks for your quick responses.

Gaps in Roxio DVD Music Discs

Reply #5 –
I wouldn't interfere before, particularly since it was mentioned what had to be said. Just a remark:
One should not judge ankles by their grandpas, but - beside of infinite troubles with drivers - such strange issues where the main reason, why i said goodbye to Roxio already years ago. I'm pretty sure that this prog is writing unusual things to a disk. Non-computer drives may stumble into that.,,

Gaps in Roxio DVD Music Discs

Reply #6 –
I don't particularly care for Roxio either, I only use it for this particular purpose.  I know of no other software that will allow you to put 11 hours of uncompressed music on one disc ,with album art and menus. It is great for this application. The only problem I have is with the lack of gapless playback on most dvd players. It will have to do until I can afford to build a computer based system.

Gaps in Roxio DVD Music Discs

Reply #8 –
It was my fault for not explaining my problem very well. Supposedly these discs are just movies with no video.

Gaps in Roxio DVD Music Discs

Reply #9 –
greynol, I am glad that I didn't need to correct you. 

Propably the DVD disc is composed as separate "video" tracks that are set to automatically play one after another. I am actually a bit surprised that some players (SW or HW) can play such a disc gaplessly.

The correct way would be to create a single 48 kHz* wav file of the complete audio stream that is intended to play gaplessly, use that for creating a single video track and add chapters to the track transition positions.

*I am not familar with the Roxio program, but I'd recommend to use some well-known high quality resampler instead of the probably unknown and undocumented resampler in the Roxio authoring program.

Gaps in Roxio DVD Music Discs

Reply #10 –
Quote from: Alex B on
The correct way would be to create a single 48 kHz* wav file of the complete audio stream that is intended to play gaplessly, use that for creating a single video track and add chapters to the track transition positions.

pjeffpowell is speaking about 11 hours of uncompressed music.
A single 48 kHz wav file would result in a multiple of the *.wav limit. If i rember well, this is 2 GB!

Gaps in Roxio DVD Music Discs

Reply #11 –
Because i wasn't sure, i did proof that. So here are the correct calculations:

Fidelity for LPCM is enhanced by higher sample rates and sample sizes. Audio CDs use a sample rate of 44.1 kHz and a sample size of 16 bits/sample. The preferred characteristics for audio conversion from LPs in M/B/RS is 96 kHz with 24-bit samples. In the WAVE format syntax, the limits on sample rate (a 32-bit integer, up to 0xFFFFFFFF, or 4,294,967,295) and sample size (a 16-bit integer, up to 65,535 bits/sample) are high enough to place no practical limit on fidelity. In practice, as 24-or 32-bit sample sizes and higher sampling rates (DVD Audio supports up to 192Khz) become more common, the overall limit on file size, set by individual computer operating systems, becomes a constraint. With 192kHz sampling and 24 bits/sample, about half an hour of stereo can be stored in a 4 Gbyte file (the limit on Windows 2000).
(http://www.digitalpreservation.gov/formats/fdd/fdd000002.shtml)

But the limit of 4 GB is still far below that, what 11 hours would result in.

Gaps in Roxio DVD Music Discs

Reply #12 –
As you said, the maximum size of a standard wav file is 4 GB. A special wav version, W64, allows bigger file sizes, but I don't know if any DVD authoring program would support it. In general, the maximum file size of NTFS is much bigger than 4 GB. I have seen some 50 GB files, but if I recall correctly the theoretical file size limit is about 16 million terabytes.

However since the tracks are ripped from audio CDs there is no need to pack more than a single CD in each wave file in order to preserve gapless playback.

11 hours of 16-bit / 48 kHz uncompressed PCM stereo audio would need about 7250 MB of storage place. A dual layer DVD disc could be used, but propably playback would hiccup on the layer change. It might be better (and cheaper) to create two standard DVD discs instead.

Gaps in Roxio DVD Music Discs

Reply #13 –
You are right with NTFS.
The filesystem uses 64bit fields. This theoretically allows a max. partition size of 16 exabytes (18,446,744 GB), which is the file size limit, too. But no actual system can handle this big. In practice the maximum size for both is 16 TB (for WinXP). However, even that is a theoretical value because of the limits in some file format specifications (e.g. AVI or WAV), and the limits within applications - not to mention the hardware requirements for such elephants.

I agree with you as well, if you are in doubt that players (or even programs) would handle wave files above 4 GB. Hardware manufacturers for the consumer market usually don't tend to exceed specifications, they remain rather on the lower side.
In short, it's really not a splendid idea to put an 8 GB file on a DVD.