I'm not familiar with the Pioneer 800/1000 you mention.
In general, you will usually get optimal results when burning at medium speeds (not too fast, not too slow) and jitter is often best when burning at a Constant Linear Velocity (CLV). If the maximum speed of your drive is 32x, the fastest possible CLV speed is probably 10x but it might be 16x. I'd suggest trying those speeds and if your burned discs work well in picky CD players, stick with that speed.
As long as you don't experience reading errors during ripping, and provided you are ripping in a way that actually detects errors, the quality of the copy will be independent of the read sped used during ripping.
What kind of error detection you have during ripping depends not only on your drive, but also on the software used and on settings/options in that software. In order to say anything more detailed, we would have to know which software you are using (or planning to use).
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