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How come DVD burners are so slow?

Old 10-09-02, 10:00 PM
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How come DVD burners are so slow?

They're still at 2x and 4x, whereas CD burners are at 40x and 48x. Why the big gap? I thought all they had to do was change the laser or whatever inside the unit. Even if it was a little more complex than that, why is it still so slow? Shouldn't DVD burners atleast have started out at 8x or 12x?
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Old 10-09-02, 10:01 PM
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I think a DVD 1x is equivalent to about a CD 6x or 8x. So do the math. The limiting factor right now, as I understand it, is the media.
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Old 10-09-02, 10:31 PM
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Originally posted by X
I think a DVD 1x is equivalent to about a CD 6x or 8x. So do the math. The limiting factor right now, as I understand it, is the media.
U sure about that? I read on cnet a while ago that 1x on a dvdburner is exactly the same as 1x on a cdburner (150Kbps). If that were false, then it'd make sense.
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Old 10-09-02, 10:41 PM
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I know reading is like that. And I read that a 4x DVD burner could burn an entire DVD in something like 15 minutes (if you could get the media). 4.7GB in 15 minutes. Or 60 minutes at 1x.
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Old 10-10-02, 12:16 AM
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CD burners at 40x to 48x!!!!???

Whoa... I am behind the times. Just looked it up and you are correct. Guess my 2X burner is kinda ancient.

Which brings me to my point. When CD burners first came out, they were 1X. And you paid a lot of money for them.

I'm guessing the speed will increase with time.
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Old 10-10-02, 08:05 PM
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Well, they've been out for a whole year and a half, they should be at least 100x by now

A full DVD (4.2 GB is the actual size they hold) burns in about an hour with a 1x disc. It would take all day if it were burning at CD-R speeds, so they are not equal in speeds to a CD-R. For a PC, the encoding and demuxing can take several hours before the actual burn, so that may have been the source of this information.

4X burners are just around the corner, too.
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Old 10-10-02, 08:46 PM
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DVD 1x is 1.321 MBps.

4X DVD burning is 5.284MBps

5.284MBps is 36X in terms of CD burning.
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