originalsnuffy
Headphoneus Supremus
good flac copies of DSD sources, really help with SD size, files are a fraction and SQ is fenomenal, almost identical, this is a good alternative to be able to pack the most on your SD cards.
When downconverting a hi res file; its a good idea to keep the resulting file at 24 bits. So for example you might want to go to 24 bits 44 khz or 48 khz depending on the sample rate of the source file (yes just divide the khz by 2 or 4). In my view the 24 bit piece is more critical. Also the iphone for example can handle ALAC files at 24 bits but nothing higher than 48 khz. So you can natively feed decent res files from an iphone to certain cars like recent BMW models that don't have Aux inputs.