Davros wrote:Too slow will compromise the write quality?
I've not heard that before
Modern discs don't like being written to slowly. They actually include information modern CD writers can read that specify what the optimal laser strength and speed is. 16x tended to produce the best burns. Vintage CD writers produce poor results with today's discs.
Burning CDs was actually such a large topic, that whole online communities formed around it, discussing the best methods. There's still FAQ's out there on how to burn discs in a way that makes them last longer and keeps them readable at full speed by most CD-ROM drives. It can get pretty complicated too with things like CAV vs CLV and how it affects the discs 🤣
There's also software that can test the quality of a disc (if the drive supports error reporting) after you write it, so that you can determine the best parameters for each brand. Too many errors cause the drive to re-read the data multiple times and reduce its speed, which is what causes the slow read speeds.
Many years ago, I've got that stuff obsessively nailed down, doing perfect burns, including perfect duplication of my copy protected originals without needing "no cd" cracks to play from the backups. The funny thing is, I now remember next to nothing other than 16x being best in most cases 😵