CompuServe Messages

Glen, I already figured out that the motherboard change improved the performance of my Mitsumi CD-ROM drive, since the system board was the only major component I changed. What I'm curious to find is -why- the motherboard change made such a major difference in the CD-ROM, since no other components were changed, even the CPU and its clock speed. The other question I had, out of curiosity, was why I encountered problems with two discs from the same production and mastering company. I wanted to learn the reason that my Mitsumi would read the directories of those "ISO 9660" discs, but would not open or access any of the files on the discs, giving instead a "drive not ready" error message. The problem with those discs was even stranger because all of the other discs I've purchased have given no problems with accessing files. So far, I've gotten only one response to the questions. One user suggested the disc file access failure might have come from a failure to completely load the directory information onto the CD-ROM when it was mastered. Otherwise, both of my questions appear to be total mysteries.