Ideal for updating software/programs during writing, programming and developmental stages. These discs hold up to 700MB of data or up to 80 minutes of audio whilst having a speed of up to 4x compatibility. The rewritable format allows for erasing and re-recording of data up to 1000 times. Can be applied across a wide range of multimedia uses. Compatible with certified multi-read CD-ROM drives or the machine they were recorded in. Please check your user manual for compatability.