That was predictable, youtube regulary changes the API. If a download helper is unaware of these changes, the download speed will be limited at best, but more often the extractor just stops working. Youtube-dl from 2021 is broken too, for example. However, seeing that ffmpeg can do things to get a …

if mplayer could interface with the dos packet driver, which maybe it doesn't. It does almost from the beginning. Even more, unlike FFmpeg, it was able to stream from a SMB share at the time. ffmpeg can pipe to mplayer for playback. Simultaneously? No. It is impossible due to single-tasking nature …

A non-SSE aware OS should not enable SSE, which is disabled at boot time. If some buggy application still thinks that SSE is available, you will simply get an illegal instruction exception at a very first SSE instruction.

A ROM extension must be 2 KB-aligned, have a zero checksum and must not overlap with another ROM (I leave aside builtin modules). In principle, BIOS might violate some rules, for example, refusing to scan a desired memory address at all. Try a different one, let's say, 0x8000, it is 32 KB-aligned. …

BIOS3.BIN actually contains two BIOSes: the first one is for onboard video CL-GD6410, the second one is the system BIOS by Phoenix. BIOS4.BIN looks very similar: there is a tiny RAM DISK driver in the beginning, while Award System BIOS takes the last half. XT-IDE can be placed at 0x1000, 0x1800, …

The video BIOS is already there, this is a good sign. I think, you see 55 AA 60 in the beginning, that means that the ROM extension is 60*512=49152 bytes long (but in fact, yes, it is much shorter). If you simply place XT-IDE at 0x9000, this address won't be scanned (0x9000 < 49152) and the video …

This article suggests that Athlon XP / Palmino should be ok, as well as Duron / Morgan.

AMD Athlon MP

Mplayer has no official support in upstream, it was ported to DOS by a quick and dirty way. Of course, it still can be compiled after some patching. FFmpeg is a bit different story, at least configure & make should pass out of the box. But if someone wants to do a normal, non-crippled build with …