Your realtor should have gone over this before the first showing. My first realtor for the sell of my first house didn't go over this, but the realtor for my second house did. She told me that anything we were planning on taking with us - curtains, fixtures, the house water softner - we were to either pack away, put a note on it or a red sticker on. Then a note on the counter that items with red stickers would NOT convey.
I can understand the leaving of the undercounter CD player, from the standpoint that removing it will leave holes in the cabinet.
Each time we moved I learned something new. The first time we moved, I learned about the window treatments - they matched my living room decor, and were a wedding present. I didn't find out about it until after I had packed them and the buyers were doing final walkthrough. The buyers husband threatened to call of the whole deal for breach of contract! I was shocked. I was by myself during the walkthrough with the buyers and their agent. Hubby had gone to pick up the moving truck, and my agent was in route. Their agent just said 'yep, its in the contract and if they're not left, the deal can be broken'. The buyers hubby even pulled out the contract to show me. Luckily for me, when they had marked window treaments, they added a comment in the below section that mentioned 'will leave living room curtain rods'. Which I had left. I used that as my leg to stand on. I appealed to the wife, and agreed to find/unpack the remaining window treatments if I could please keep the living room ones. She finally agreed and her hubby backed down.
Read the purchasing contract carefully, look at every item they checked and any notes in the comment section.
One thing you can do, is write up a list of items that you are wondering about, and ask the realtor to present it to the buyers. It could be that they don't want your pots/pans rack or CD player,and will just toss them. However, if they do say they want them, then, you'll need to leave them.