Your AR max evo can run stuff offa a usb stick. Usually the AR MAX EVO is sold with a usb stick, but some other usb-sticks work too. (usually the small ones).
So how does it run stuff? Using the media player u can run homebrew stuff like cog-swaploader-elf (from the cog-swaploader-cd-r from www.swapmagicfix.com). Cog-swaploader will make the cd spin down and/or allow u to toc-swap in a dvd+-r backup.
Question: but it keeps bootin' PGEN (the genesis/megadrive software)
Answer: Yes, Remove/replace the "autoexec.elf"-file....and AR will allow u to choose a file to boot in media player
Question 2: I got AR to run Cogswap-loader ... how do u run dvd+-r backups offa it.
1. press eject (or TRIANGLE if u got a slimline)
2. insert the biggest REAL ps2-dvd u got
3. press eject (or TRIANGLE if u got slimline)
4. swap in your dvd+-r
5. press x (and ot boots)
PSP 1.52 (DG), DS 001, XBOX v1.6B+Cheapmod+120GBHD, SM33, 50004+HDA10+120GBHD, SM32, BP11, 3900X, XBOX v1.6+Softmod, P4_2.666, GBASP, GBA,Celeron_700, DC, PS1, P2_300, TI85, Saturn, GBC, GBP, Megadrive, P75, Amiga 500, MS, 486SX25, Amstrad CPC464, ZX81