Hi all, I went to best buy to get some CD-RW blanks for this ti powerbook,my question is what brand and speed seem to work for a combo drive? what the store had was 1Xto 4X or 4xto10X disks. what my machine came included with,are marked 1x to 16x duh have have not found in the manual what speeds are for this combo drive, G4 800 powerbook. thankyou for help