Sony Vaio PCG-F707 Problem

[laptop_kid]

Hi all, could do with some help if possible as I have gone as far as I can.

My problem is to do with a Sony Viao PCG-F707 notebook.

Due to selling it i decided to return to Win98 from XP. I formatted to HD as I have done on numerous occassions, and then booted up using a win98 boot disc. No problem so far it loaded the cd driver and set the virtual drive to D:, making my CD E:

My problems started when I tried to read the WIN98 or any other cd. It will not read. I just keep getting a CDR101 error. I dont even get a cd in use light.

I though it might be the CD drive even though it was working less than 5 min previously with the same disc. So i changed it. Still the same error, light not lit also.

Then I though that given the disc was working less than 5 min ago it may be a HD failure. I changed it for a different one. Same problem...

The CD and HD are both recognised in the BIOS. The only thing that I thought might be of use next is to flash the BIOS, but before i try it i thought you might be able to suggest something before i have to break it up for parts.

What do you think?