There are review articles on this site. I think there is another
site that does optical drives too as a specialty.
http://www.cdfreaks.com/article/search/B
Some of the recent reviews have been abbreviated, while some
of the older ones were more extensive. Personally, I think
a buyer needs as much feedback as possible on usable media,
because you can go through a small fortune in sample packs
of media, finding stuff that works. (Considering the current
price of drives, I spent more on media tuning up a drive for
a family member, than the cost of the drive.) It has been a
while since I played with one (I don't own a DVD burner, just
CDRW), but it is possible to scan the media after a burn and
plot the errors versus position on the disk. This is an
example of Kprobe in action. If you ever do a burn, and when
reading the results later you notice the optical drive is
freezing up near the end of the disk, that is because of
excessive errors. Doing an error scan like this, will show
100K errors near the end of the disk, which makes the drive
go crazy. If memory serves, I think this isn't a bad scan.
http://gfx.cdfreaks.com/reviews/nec_nd-3540a/image222.png
A lot of new drives are released with half finished firmware
in them. Which means not only will you be buying a drive,
you'll also be learning how to flash them. It is a good
thing the average customer likes to flash their new purchase
- it's what we live for... (/sarcasm).
Also, one thing to watch for when using burning software,
is there can be interaction between "virtual CD" software
and the burner software. I had a situation where the drive
seemed to be suffering from buffer underrun, and it turned
out later to be a problem with having a "virtual CD" mounted.
As well, you may want to check into something called "ASPI".
I've forgotten all the details now, so I'll just give you
some teaser links. Now you've got plenty to read.
"Installing a working ASPI layer"
http://www.afterdawn.com/guides/archive/aspisetup.cfm
(28,700 hits here)
http://groups.google.ca/groups?lnk=hpsg&q=aspi+nero
In terms of burn speed, there is CAV, P-CAV and CLV, and
the shape of speed versus position on the disk is different
for each.
This is probably the most prep work you'll ever do, to make
a $50 piece of electronics work.
Once you find a model with good reviews, then you can
track down where to buy one. I was shocked at how
crappy the whole process went for me, so I hope your
experience turns out better. And when you go on a
media buying shopping spree, don't forget to take
your drive's spec sheet summary with you to the
store - nothing worse than trying to remember what
all the burn speeds are, without a crib sheet. I
went to several stores, to try to get a decent
assortment.
Paul