Thread: Question with DVD drives
August 24th, 2004, 11:05 AM #1
Question with DVD drives
I am currently looking into investing in a DVD-/+R drive...
There seem to be so many on the market... Can anyone recommend one?
Also, I have been looking into the media that it burns to...
A quesiton that I have is that I have seen some for 2x disc at a cheap price, and I would like to know how it works...
Since an 8x writer can write discs up to 8x, depending on the disc, how does the disc determine the writing speed? i.e. why can't 2x disc be written at 8x? What are the physical limitations that stops it from being burnt at a higher rate?
Also, if there are physical limitations for when it is being written, do these limitations also extend to when it is being read?
Thanks in advance!
August 24th, 2004, 12:32 PM #2
If you use 2x disks it is best to burn them at that speed. To do otherwise is risky. I also recommend using quality disks rather than cheap ones. The same goes in purchasing your DVD burner. I have an NEC 2500A and have never had problems with it. If you shop price only, you will most likely regret it. Good hunting!
August 25th, 2004, 07:50 AM #3
August 25th, 2004, 12:23 PM #4
I thought I did. I use NERO 6 Ultra for my DVD burning process. It automatically reads the disk and sets it for optimal speed. 99% of the time it calibrates to the speed of the disk. I do have the option of over-riding the speed, but as I said, I don't recommend doing this. You increase the chances of a failed burn. The disk media determines the proper burning speed. NOT the burner, but it's your choice. As to read speed, if you burn at the media's suggested speed (and it's good quality media) your disk will read just fine. If you increased the burn speed beyond the specifications, you will either have a failed burn in which case you just made yourself a coaster, or you will have read problems. If it's a copy of one of your DVD movies, it will freeze, stutter or skip over frames. Another coaster.
Last edited by dr_roberts49; August 25th, 2004 at 12:29 PM.
August 26th, 2004, 09:14 AM #5
One of the questions I still have is when a disc is only supported for 2x burn, does that mean that it is limited to 2x read even if the reader is 8x? Or is it something totally different?
Last edited by Chaffers; August 26th, 2004 at 09:17 AM.
August 26th, 2004, 11:38 AM #6
2x is more than adequate for a read speed. I've used 2x on my DVD burner which is capable of 8x burn speed. The movie I burned ran just fine. I've also had success in burning Ritek and Memorex 4x disks at 6x speed with no problems.
August 26th, 2004, 12:35 PM #7
Had a little spare google time:-
Subject: [3-34] Can CD-Rs recorded at 2x be read faster than 2x?
The only possible basis in fact for the, "if it was recorded at 2x, you can't read it faster than 2x" rumors is that some drives have trouble reading CD-R media. Discs that are hard to read when spinning at 12x may become easier to read when spinning at 4x. It has also been noted that some recorders will write more legible discs at certain speeds (e.g. the Yamaha CDR-100, which works better at 1x or 4x than it does at 2x). None of this should lead anyone to conclude, however, that the write speed and read speed are tied directly together. The reader, writer, and media all have a role in determining how quickly a CD-R can spin and be readable.
It's also the case that discs written at high speed (say 8x) can be read by drives *slower* than 8x. So if you're distributing discs to people with old 4x CD-ROM drives, you don't have to worry about them not being able to read at 8x. Of course, if the CD-ROM is poorly constructed, or the writer is producing marginal discs at high speeds, you might see evidence to the contrary, but there is no technical barrier to reading discs recorded at 8x or 12x on a slower drive.
Hence, it can be assumed if it is burned at 2x, it is possible that it can be read at 8x... I think...
EDIT:- Source from http://www.cdrfaq.org/faq03.html#S3-34
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