Hi,
I have around 3000 photos on my iPhoto.
I want to move them on disc. I can only fit 300 on each disc.
Is there any other way to compress photos to be able to fit
more pictures on a single disc?
Thanks

You can zip them.

Or burn to DVD instead of CD.

If you're doing this as a back-up of the pics, I'd suggest getting an external drive (firewire interface) and store them on it. Preferably one that is big enough to make a complete clone of your hard drive, which you should do on a weekly basis.

Thanks for suggestion.
I bought DVD+RW but when I put it in my PowerBook G4 it
spits it out. Is DVD+RW compatible with my comp or what do
I have to do?
THanks.

Look in System Profiler for your CD/DVD drive specs. It will be listed under "ATA". There will be two devices listed, one will be your hard drive, the other your optical (CD/DVD) drive. It should say DVD-, DVD+, or both.

Do you have a Superdrive, able to write DVDs, or just a combo drive which will only read DVDs?

This is all what it says:
Firmware Revision: CA0T
Interconnect: ATAPI
Burn Support: Yes (Apple Shipped/Supported)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
Burn Underrun Protection CD: Yes
Write Strategies: CD-TAO, CD-SAO, CD-Raw
Media: No

I guess it does not record DVDs.