I bought a 16GB SD card for my Roku 2. It formatted OK, but I noticed almost immediately when I would access a channel it would say it was "full"? I don't think I have that many channels about 10-12. It forced me to remove channels, for it wouldn't run and I would get an error about being full. I should also mention that I did not have this issue prior to using? It would need to install the channel and tell me to buy an SD card. Now I cant have more than 10-12 channels! Is 16 too small? How many channels does your SD hold?