21.   After that, Divx disks will be worthless.

22.   Businesses and even some home computer users have been buying them so fast that the disks are in short supply.

23.   But Chen said that the evidence was insufficient to determine if the dust disk was a remnant of planet formation or a place where planets could form.

24.   But the disk itself is largely successful, offering choice rarities among the few well-known, predominantly dramatic offerings for baritone and bass.

25.   But those disks are even bigger than floppies.

26.   By next year digital video disks may be in use both for movies and with personal computers.

27.   Certainly, the little disks should be handy enough.

28.   CD-ROM disks may be slow, and the content may be of questionable value.

29.   CD-ROM disks are nearly permanent.

30.   Clik disks are not solid state and introduce moving parts into the players.