I've been looking for a max drive that is compatible with my Mac, and none of them specify. What do you guys with Macs do?
I just recently acquired a 128mb Max Drive ($24.99 at Best Buy after Christmas), and I use a Mac G5 running OS 10.4.8. As was stated by someone else, the drive itself is just plug-n-play with the Mac. With no special software of any kind you can read everything from the USB drive and copy anything to the USB drive (even folders) on the Mac. You can also delete files from the MaxDrive, just like any other drive on your system.
The only tricky part is that when you plug the USB stick into your Mac, all of the just-added PS2 files will have ludicrous names that tell you almost nothing about the file's contents (97328_2178_GRAN_TURIS.max, for example). So if you have more than one save from one game (such as multiple replays) on the MaxDrive at the same time, you will have a REALLY hard time telling which is which. Luckily for me, I have a Windows PC at home as well- with the Max Drive software loaded on it I can read what the original PS2 filenames are (GT4 Full Replay[1], for example).
The good news is that from the Mac you can simply rename any of the .max files as you see fit (for example: GT4_AllGolds_Day101.max). Doing so will make your many gamesaves and replays MUCH easier to sort through and organize. When you copy one of these re-named files back to the USB stick (and then to the PS2), it still functions EXACTLY the same as the original poorly named file, and can be read by the Max Drive software, and also by the PS2 system (once the file is "uncrushed"). So why Datel didn't provide better file naming (or at least allow the user to name their files at copy/save time) is beyond me. Seems completely unnecessary.
As long as you are willing to work around the initially difficult filenames (such as only transferring one file at a time so you know exactly what file it is until it can be renamed), the Max Drive works JUST FINE with a Mac.
One last thing- be sure to EJECT the USB stick from your system before you pull it out of the Mac. You should do this with all your USB and Firewire peripherals anyway. As with any data device, not doing so could cause your Max Drive files (or the drive itself) to become corrupted.
I hope this all puts your mind somewhat at ease! Other than the filenames, using a Max Drive with a Mac is no problem. (so far, anyway)