Sure but why would that have anything to do with how fast the burner does the job?
The faster the drive (read or write), the faster the disc spins.
The faster the disc spins, the more distance that goes by the laser.
CD Burners use the laser to create lands and pits on a CD-R disc. The faster the writing speed,
the faster the laser has to cycle on-off.
Those are all facts.
The theory is:
The faster the burn speed, and hence the laser cycle time, the less defined the change from a land to a pit and vice-versa. (It takes time for the laser to shut off/turn on).
Since a cd-player recognizes only the change from a land-to-pit (and vice versa), slower drives may mistake a transition area for actual data (since it is longer than expected, due to the write speed).
Slower write speeds lead to better defined land and pit areas, and better recognition.
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BTW, this isn't a new problem. BITD, I had one of the first cd (audio) players available. I shortly thereafter purchased a 1x burner setup. Everything worked fine.
Then, due to an unfortunate accident, I had to replace the burner; I purchased a 4x model -
and found out that discs burned at 4x would not play in the cd player. I chalked it up to the player not liking writeable discs.
When a friend suggested lowering the burning speed, I couldn't understand why it would make any difference. But it did. Discs burned at 1x ( and even 2x with quality discs) were fine.