As the topic says.I'm wondering if i can put 2 pioneer 104s in my pc & burn to 2 disc at once from image files.I'm running a xp1700 with a 120gb 7200 8mb hd & 512 pc2100 ddr ram.

Yes you can.

I have a 104 & 105 in my system but wish I had 2 104s.

Mate, I am sure some one will trade you the 105 for another 104.

I'll give it another couple of weeks to see if there's any new firmware reliesed for the 105 and if not I'll post for a swap. I think the 104 is so much better that the 105 at the moment.