Fuji 25304030 CD-R, 80 Minute (30-Pack) 30 write-once recordable compact discs on a plastic spindle 700 MB storage per disc (80 minutes), 21 GB (40 hours) total 1.5 Mbps transfer rate, up to 48x write speed Good for at least 1 million read cycles per disc, with 70 to 100 years estimated archival life Compatible with all CD drives