Lately I've been really annoyed by music codecs.
I used to have all mp3 320kbps/48000kHz but realized lossless formats had MUCH better sound. Then I tried to rip my CDs on flac but failed as the process was long, complicated and boring. As I use iTunes a lot I decided to import them on Apple Lossless Format and found that I could only have 28 albums if I decided to use it, which is less that half of all of the albums I have. I'm back to mp3 now, unfortunately.
It sucks to have to stick with mp3s or buy a music played which can hold hundreads of albums in lossless formats