Here is Queen's full studio discography that I ripped myself from Super Audio CDs (SACD) into loss less ALAC files. Audio quality is outstanding, studio-grade. iPod-compatible Lyrics embedded on each file.

There is also a Compilations and Live Albums with 320kbps MP3.

Complete ripping method and script can be seen on each file's comment tag. Tag data provided by MusicBrainz.

Original SACDs had 352800 Hz sampling rate and 24 bit depth. To be usable on most players, conversion used still super high fidelity 192000 Hz and 24 bit. Studio albums only total size is 32GB. FFmpeg magic, as you can see on comment tag shell script, is:

ffmpeg -acodec alac -ar 192000 -sample_fmt s32p