I have been reading threads recently regarding larger size cards for more storage space. I was unaware that there may be a problem when I purchased a RAM Components 16GB Secure Digital High Capacity (SD HC Class 6 Card). I am pleased to say that having formatted it to FAT32 and having uploaded the latest TT firmware (8.301) that everything is working just fine. I have all 31 lands for Europe and full maps for Australia loaded as well as 4000+ songs on the Juke box. I am only using 12.4gb of the total 16gb but I can discerne absolutely no problems with saving POI's, voices falling out, slow map loading or any other glitch. Seems to work just fine but I will advise if I find anything that does not function properly. 
