Compress cd

Can anyone tell me how in write above 700 m.b. data in a single 700m.b. cd. ?

You cannot.

You can overburn, but you won’t be able to fit a whole lot more stuff. Perhaps 710 MB.

Can you compress it with Winzip/Winrar or something similar first?

If you are talking straight Data backup, you can’t, unless you overburn & that can be quite iffy.

If you are talking about Audio CD’s or Video/ Super Video CD’s, you can. This is because they throw away error correction capability for the extra storage. Who cares about a few bad audio samples, out of 44100 a second, or a small glitch on the screen, out of 25/30fps?