I now do the Australian and New Zealand arm of the REQUEST REAL DOS DISKS feature of the US www.trs-80.com web site. If you have an old TRS-80 and need a DOS disk to see if it still works, drop me a line and I’ll supply a DOS disk for the cost of postage. (Applies to Model 1, 3 and 4 DOSes – Model 2/12/16 maybe in the future, but if you have one of these 8″ systems by all means contact me to source DOS boot disks from like-minded individuals.)