What are you using to rip your cds to a hard drive?

Kenrus - No need for a fancy new disk drive - the one in the PC is perfectly fine. After all it transfers data for large companies, so it's good enough for me :-)

The drives in the various "vaults" are no different - but some like to believe they are :-(

Just get DB Ripper - I like it's ability to let you know if there are errors on your disks (due to scratches) that may/will impact your sound.
https://www.dbpoweramp.com/cd-ripper-setup-guide.htm

Unfortunately it will not repair detected issues

Regards - Steve

Exact Audio Copy - free

If your external drive is one of the "slim" types I would replace it with one that uses the kind of 5.25 inch drive mechanism that is used in desktop computers. Such as this OWC Mercury Pro, for $69.75. Or, alternatively, you could purchase an Asus bare drive or other high quality 5.25 inch bare drive from Newegg.com for less than $20, and put it in an inexpensive external drive enclosure that provides a SATA internal interface and a USB external interface. Many such enclosures are available at Newegg.

The reason I make that suggestion is that I’ve found that various slim external drives, and also optical drives that are built into laptops, often have problems reading discs that are in less than perfect condition. While those same discs will be read by inexpensive 5.25 inch drives with no problem.

I also concur with the others that the software that is chosen should assure bit perfect copying.

Regards,
-- Al

+1 on dbPoweramp and as usual Al give good advice on the actual disc drive part of your question.