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Why are DVD burners slow at burning CDRW's

probably because they can't be optimized for both types of media.

Since I don't burn dvd media, nor do I watch dvd on my computer, AND because of the subject of this message, it wasn't until recently that I bothered to put a dvd drive in my rig. Even then, I have a plexwriter premium in there as well for the cdr/cdrw chores.
 
my guess is they dont spin the disk as fast - the pits/marks or whatever that represent data on dvd's is a lot denser, so the disk doesnt have to be spun as quickly in order to read/write data fast, plus it has to be slower for the more complex business of reading/writing onto dvd. Sort of like hard disk platters stay the same size and are spun at the same rpm, but newer/higher capacity drives get "faster" because the data is put onto the platters more densely.

to hazard another guess, they could spin it quicker when cd is detected rather than a dvd, but the motors etc probably designed more for being very stable rather than very quick. Similar deal with the lazer perhaps, optomised more for dvd burning than cds.

hrm eastvillager wrote similar with less guesswork in one short sentence 😱
 
What's considered slow? 12x 8x?

Cdrw's have always been on the slow side... and quite choosy on which drives can read it.
 
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