I happen to own a Datel Max Media Player (with the anemic 4GB microdrive-HDD) and still have it, though the microdrive is dying and the chassis of the cartridge is starting to crack/warp. I can't believe it launched at $149 (more than an entire DS) but I got mine for $30 back in '07.
What I really want to know is: Is it at all possible to jerryrig a flashcart firmware/software to function with a DS emulator on Windows properly? I can get the Max Media firmware to boot on DeSmuME and NO$GBA but I can't trick it into seeing a root path.
I'd love to get that working, because I have a large selection YouTube videos (many of which are entirely lost to the ether, either deleted by their users, or said users deleting their accounts/getting banned) that I converted into the .d3v format (designed for playback solely on the Max Media Player) and my moronic past-self deleted the source .avi videos. While PCs can play glitched-yet-coherent audio of a .d3v file through Winamp, none of the video signal of a .d3v is playable on any PC program. I really wish I hadn't deleted all the source .avi videos
If setting up a virual flashcart on DS emulators is impossible, then recording the videos from my DS Lite off-screen with a camera and using an audio cable for direct-feed audio is going to be the most "ideal" way to put these videos into a plausibly preservable state (hhhhh lmao)
But to answer the OP's question, I wasn't able to get any PS1/N64/Saturn, or even Master System/GameGear/GameBoy/GBC/GBA/TG-16/Atari2600-5200-7800/Lynx/Jaguar/WonderSwan emulators for DS of any kind to even open without 'fatal error' messages.
The only emulators I got up and running on this glorified GBA flash cart were 1) a solid, stable build of NesDS, 2) a horribly shoddy early build of SneMulDS (v0.3) with unacceptable performance and no support for HiRom/SuperFX or even flipping Mode 7, and 3) a MUTE, slooow (yet solid) build of PicoDrive (Genesis). NesDS and PicoDrive weren't hard to get up and running, but SneMulDS was hell and a half to properly patch and set up. As far as emulation of native DS titles on DS Max Media, there's "Max Overload" but in the 5 different versions of the software I had (including v1.2 bundled with my Max Media) I never got a single DS game to actually open, and in the case of certain titles (not all titles), some required a donor cartridge of the game itself to be inserted once to fully add the game (even with games I owned where that method was the case, putting the cartridge in still didn't get the game to boot)
Save yourself the trouble and don't bother messing with the Max Media Player any further. The DS is a very mature console when it comes to homebrew and emulation with over 13 years of experience under its belt. But the Max Media Player dropped in late 2006, barely 2 years after the DS itself, with not a single software or firmware update after Feb 2007, even losing Moonshell support beyond v1.61. Going for an R4i or DSTWO+ will carry your DS into present day.