with a p3 700, i guess this laptop is a little "old".
how old is it & how old is your firewire CDRW?
note: Burning & Buffers
because during the writing process between hour hard disk & your CD-RW drive, you must have a linear data flow without shakes, you have a double buffering system to maintain this flow continuously (a hardware buffer from your CDRW drive, now up to 8MB, & a software buffer created by your OS via your burn software).
<i>if <b>you know</b> <font color=white>you don't know<font color=black>, the way could be more easy ...