41.   Henry, the senior editor of Roll Call, said Thursday that the aide thought it was odd that the disk was in the park.

42.   Here is a disk blessed with such musical truth that it can be used to assess the performance of CD players.

43.   If your disk is messy, this could take a while.

44.   In the early period of planetary formation, the disk would still be thick with gas and other material.

45.   Included on the disks are an older version of the popular Netscape Navigator browser.

46.   Initially, however, the video disks will not be able to record programs off the air.

47.   Library officials, at any rate, were convinced that the disks were in wretched shape.

48.   Most astronomers came to assume that the disk was a protoplanetary system.

49.   Newer system-restore disks are smarter.

50.   Not only are disks cheap, they eliminate the nuisance of having to connect a cable to a computer to transfer the images.