Nice plugin, has some lacks though
First of all - it works, easy and nicely, as "base" Retrode (you just need to plug it into MD slot - you need to do it properly, otherwhise you can have issues with reading cartridges properly). It's very simple to use - just put cartridge, plug into PC and use/copy ROM file. Since whole Retrode is detected by system as data storage medium, it doesn't require any additional software.
Sadly, there are some problems. With such games as Sonic Advance series or Sonic Battle I've never managed to obtain working ROM, every time dumped ROM wasn't working in any emulator. Other lack is the fact that plugin is unable to deal with "multi-games" cartridges - of course I've tested only officialy released "multi-carts", but none of these allowed me to obtain working ROM(s). I also don't like the fact that slot is not covered in any way, there should be at least some small plastic cover.
I like the fact that this plugin was created, because it seems to be very convenient method of dumping roms. But the fact that it's not working with some single games and with all compilation cartridges, is noticeable lack.
The shipment arrived quickly in the US and the plugin works perfectly!