Gary Sparkes Jr. wrote: This problem was addressed and solved for the TS1000/ZX81 years ago. Most programs for this machine which are available on the 'Net are in "P" format and can be transfered to the machine from any MS-DOS PC by means of the ZXTape utility, which is free. The data is transfered from the PC via a simple cable between the PC parallel port and the audio input jack on the TS1000/ZX81. All the required instructions are included in the ZXTape .zip file (back to THAT discussion again ;-) which may be found at multiple locations by Googling for "zxtape" ZXTape is pretty old so you may have to use a slow PC for it to work properly (I have a 286 set up as a file server for moving programs to my ZX81). There's a newer version (ZXTape3) for Pentium-class machines but I've never used it. Once you've LOADed the program into the TS1000 from the PC, you'll be better off SAVEing it to tape via one of the many high-speed tape accelerators which are also available free. I have a hard drive attached to my ZX81, but prior to that I used a fast-tape program which transfers at 4800 bps instead of 300. This cut LOAD times on 16K programs from 5-10 minutes to about 20 seconds. Be sure to check out the archives at the Univ. of Trondheim ftp://ftp.nvg.unit.no/pub/sinclair/zx81/ as well as the ZX81 pages at The World of Spectrum http://www.worldofspectrum.org Tip of the hat to Wilf Rigter, author of ZXTape. Glen 0/0