Total DOS Collection (TDC) release #19 - August 2021 #19 highlights: Celebrating the 40th birthday of the original IBM PC that started it all. Gigs of new material, thousands of new files, hundreds of bugfixes, tens of new folders, and one stunning new ANSi by VileR await you inside. Our best release ever! --- Since 2007, the TDC group has worked to document, sort, rename, catalog, and scrub everything that is DOS. Similar to other renaming groups, the collective work is presented in a CRC based .dat file which can be loaded into "ROM" scanning tools (we use DATScan or DOSCenter) to assist in identification of DOS files. The .dat file is built off our archive of material and is updated several times per week. The latest .dat file is always available on our website. Every year, as a toast to the IBM PC's birth, a snapshot of the archive is released to the world to celebrate the occasion. Each snapshot supersedes the previous one, as new files are added, typos fixed, and the occasional file pruned.