I just internally installed a uIEC drive in my 128D and somehow it worked the first try! (Seems like a lot of people have a hard time getting it to work correctly the first time so I guess I got lucky!) I installed quite a few games in .d64 image format on the SD card and for the most part they all load. Some do not and just hang when loading and from what I have heard that is normal for some programs to fight the uIEC and hang. I wondered if there was any database that shows titles that are compatible with it or if I should just dump a ton of games on the card and go through them all and delete the ones that won't work? It's a great little device even with this one shortcoming, totally worth the $35! Have a happy and safe 4th!