PDA

View Full Version : CD-R Burn Speeds for SVCD copies ..


Bob01605
20th January 2002, 14:51
I have seen mention of lowered burn speeds for movies - " I cook em slow at 4X etc., etc. ". I tried a test yesterday.
I burned part 1 of "American Pie 2" at 12 X ( Using CDRWin 4.0 and my AOpen 24X CDR2440 Cd burner) and then burned a SECOND copy of the of the SAME part 1 on a separate disk at 24 X. The 24 X copy burned on a Verbatim Cd-R in 4 minutes and 17 seconds. I marked each copy 12 X and 24 X. I then had my wife place one of the disks ( I didn't know which one? ) in my Pioneer 525 DVD player and threw the SVCD through the component outputs to my Hitachi 53" widescreen.
For about 30 minutes she switched back and forth between the two disks. I used the remote and we played the same chapter over a few times with each disk. I could NOT tell which disk was playing and I tried real hard to see a difference.
I don't understand the "idea" of "cooking them slow" if they cook fine at higher speeds .. My feeling is that if you NEED to cook them slow and you get coasters OR a poor quality copy if you raise your burn speed - Maybe your media or your CD burner may not be operating as they should ??

Bob

Mozart
20th January 2002, 18:25
Well, you made your test with Verbatim media, and verbatin is well known as pioneer in manufacturing high quality media for high burn speed. What about a test with some "no brand name" media?

Bob01605
20th January 2002, 18:42
Mozart,

These Verbatim CD-R's were purchased for $14.00 for a spindle of 50 at a "Sam's Club" which is the "club" side of Wal-Mart in the USA. They work well and are inexpensive at 28 cents each. I will try the same thing with other disks when I get the chance ..

Bob

Linux
20th January 2002, 19:06
I think that you are more or less right.

I have a set of no name CDR 80 min that I burn at the maximum speed (20X) without any problem in my DVD-player.

Then I burnt "The grinch" on a Memorex 16X 80 min with max speed (16X) and the last few chapters where unviewable on my DVD-player but OK in my PC.

What is the problem then: the burner, the DVD-player or the media?

I believe that when I burn in higher speed on some media the pits are not made perfect so some players get problem. This problem is solved when I lower the recording speed on that media.

markrb
20th January 2002, 19:18
The issue does not effect all people.
It really depends on the quality of you media and burner.
A combination of good media with a good burner means you can burn at faster speeds.
My HP burner could not make a SVCD any faster then 4X, but so far my new TDK burner seems ok to 8X and I have yet to test any faster.
You can make a test burn at fast speeds and if you see no problems like green blocks or jitterey video continue burning at that speed until you do have problems.

I am a little conservative and since I don't always watch my SVCD's before I erase the files I tend to burn at 4X to be safe.


Your problem with the video is probably your burner. A computer CD drive is able to compensate for errors while a DVD player does not have the same level of ability. So if the burn was better then it would play better, but if DVD players were better it would also play better. It may also be the media. Maybe the DVD drive has no problem reading the outer tracks, but does on the inner. It's just a guess though.


Mark

nfl2k2
20th January 2002, 19:28
Here's what I found out with my burner.. I've got a 16x10x40 yamaha. If I burn at 12x or higher, play the first disc it works fine until about 45 minutes. After 30-45min the picture starts breaking up and the audio/video start going nuts making the movie impossible to watch. So I burn at 8x and it solves the problem.

I've tried 4 different kinds of cd-r and it does the same on them all.