QUOTE
When I was living in Argentina a friend of mine had a computer store (he bought one of the first 1x burners where we lived, in Necochea) & he would have burnt about over 10000 CD-R's he told me for archiving to burn at 4x generically (e.g. regradless of CPU/burner/CD-R type) & I think it make sense.
Why? Some discs (especially newer ones) give higher error rates at lower speeds.
Also, 4x is very slow. The laser and disc will get very hot. Excessive Heat isn't good for lifespan.
QUOTE
I burn everything at 24X because my LiteOn 32123S gives the best results at that speed concerning C1 error rates. in this burner 24X gives better results than 16X and 32X.
I have heard someone else say this, too -- strangely with my 24x LiteOn, 16x will 90% of the time give the worst results. Logical, hey?
QUOTE
What do you mean, not C1 errors, every burnt cd has C1 errors.
He's right you know
Lev's Summary:
This is an ongoing problem, IMO. When the first 8x discs came out, they would produce a better burn at 1x, 2x, and 4x than 8x. Now 48x is the norm, and peopled have only moved up the scale, saying up to about 24x is about the tops. What happens is that CD Manufacturer's take a LiteOn style approach and as soon as the technology is viable to produce discs that will burn at high speed, they slap it on the market. Chances are it WILL work at that speed but not that brilliantly. Of course, people notice this and then say "BURN S L O W". And humans, being human, get sort of stuck in their ways, and never care to look at the fact that the evidence has long since gone, and, e.g. burning @ 48x is as good as 4x. They think they own some 'Hard to come by knowledge' that makes them sound big when they dish it out.... But thats another discussion

I think this guy's site points out some discs that do better at higher speeds...
Dolphinus