hi joan ann, i am currently using the i audio,it is superb, i got the 20 gigabyte model, i did however get tremendous assistance from stuart lawlor at NCBI, also, dave in the "back from the future" shop couldn't have been more helpful, i also have c dex software on my computer, when you purchase the i audio from "back from the future" rockboxspeaks really really quickly but stuart installed "voicebox" for me, and now i can understand what is being said, it names the individual tracks, and the quality is really good, just want to say thanks to stuart for his help and interest, travel safely, joe.