Additionally, using a “portable” older version (1.2.22) means missing bug fixes and newer features from later releases (v1.2.x and v2.x). However, for stable, legacy workflows, the portability and familiarity often outweigh the need for updates.
: If the video preview doesn't show up, you may need to install external filters like LAVFilters or manually select a codec in the Filter/Codecs settings.
Mastering Your DVB Recordings with Cypheros TS-Doctor v1.2.22 Portable