Archiving 8" RT-11 floppies to CD-ROM?

On 25 Feb 2009 at 14:12, Ethan Dicks wrote: Depending on chipset, many modern PCs can handle single-density just fine--no need for a separate controller. There are lots of old ISA cards with floppy controllers out there than can handle single density, not just the 1542--basically anything with a WD37C65, National 8473/8477 will work--and there are others. But if we're talking about RX02-style double-density media, nothing short of a Catweasel is going to help. The RX02 double-density format is DEC-unique, essentially FM sector headers with MFM data-- and funny MFM at that, with codes selected not to conflict with those used as AMs in FM data. Tim Mann has a package that works well with the Catweasel. A Tandon 848 should be fine in any case. Cheers, Chuck