Ars has a short article [arstechnica.com] about the recovery of data off 200 floppy disks used by Star Trek creator Gene Roddenbery for scripts and story ideas:
The circumstances of the information recovery are particularly interesting, however. Several years after the death of Roddenberry, his estate found the 5.25-inch floppy disks. Although the Star Trek creator originally typed his scripts on typewriters, he later moved his writing to two custom-built computers with custom-made operating systems before purchasing more mainstream computers in advance of his death in 1991.
Here [businesswire.com] is the press release from DriveSavers, the company that was paid to do the recovery work.