Not my intention to plug a specific music vendor, but if you buy your vinyl from amazon, they automatically give you the mp3 version of the record for download, as well.
I found this out when they first started offering their cloud service a year or two ago... records that I didn't even remember purchasing from them in the past were made available for download, as well. I don't think they are high bitrate copies, but I am stoked to have the extra music for the mp3 player.