I use the free Fairstairs CD Ripper utility on my laptop. Done all my 200 odd contemporary music CDs but not got round to doing my classical collection. But that uses the CD drive built into my laptop. I assume it would work with an external drive too.
Got copies of my ripped library on my laptop, tablet, phone, old MP3 player (that one bulk converted from ripped FLAC to smaller MP3 files) and a USB button memory plugged into my car radio.
Takes a while but I just do a stack while I am watching TV of an evening, taking about 5/10 minutes per CD.