If CD splice markers are not quantized, they are automatically quantizing to the right instead of the left when making DDP, CUE, or CDR. That’s not how they’re quantizing when the manual Quantize command is run from the CD Wizard, which quantizes them (correctly imo) to the left. To the left is also how iTunes quantizes when burning CDR from non-quantized files. I’m pretty sure other programs agree with that.
It’s a minor point, but if it can be “corrected”, I think to the left would be more standard, and it would correlate with how the manual Quantize command does it with Splice markers already.
Standard CD markers seem to be to auto quantizing as expected (CD Start to the left, CD End to the right).