Death and CD's

Anyone have success in selling a huge collection of CDs?

I recently became a caretaker for an estate. One of my first jobs is going to be selling a large CD collection (I am guessing there are somewhere between 7-10,000). There is a mix of music that I would call mainly Rock & Roll, Pop, Classical, and Jazz. Not sure if there’s any music that is newer than the early 2000s. We are not necessarily interested in getting top dollar. We are more focused on getting them cleared out of here sooner than later. Would be most interested in selling the entire collection at once. Does anyone have any experience or success with a similar situation? Any guidance or suggestions? Anything you wish you knew before or after? Thanks

You won't get as much compared to selling more desirable or high value albums individually.
With that many CDs, you might be able to get rid of a lot of them through a record store if you're looking for something quick. Call before you do that to discuss how they want to handle it if at all. Donate what they don't want to a thrift store.
You could also organize them into lots and sell those on Offer Up or any other local seller application. That would probably take longer.

 
Anyone buying that lot will disband thousands of CD's and will calculate that into their offer.
It's possible you could let a few collectors take first pick and maybe get actual money for the more valuable ones.
Advertise a garage sale, allow access to see what's there, sell what you can. Dump the rest to a store.
Selling everything individually online would net the most money, but that could take years and years. And you said you weren't interested in maximum profit.

 
Set at a dollar a piece (count the double and triple sets as one). Sell all in one chunk or; it might be better to break up by genre. I just bought a bunch of classical, Some doubles but, $1 per plastic case.
If it was classical with country, I would have passed.
I think Rock & Roll/Pop, Classical, and Jazz are your three. You could also break those up into smaller chunks. Like all pre WWII music in one. Jazz from 1950s to 70s in another. That kind of thing. Bringing it down to $50, $100, $200 chunks. I think more than $200 it might not work.
Any that do not sell, donate to a charity thrift like Goodwill or donate to the music school in the college the person went to or, the local or state music school(s). The classical would be mostly of interest but, even the Jazz and Rock too. If they do not use any, they will sell them in a library sale and then use the money to fund things.