If you hear a high pitched squealing sound coming from you DCC player when using a recordable tape, it is not the player but the tape. It is called the stick slip effect, caused by a dirty felt pad.
This hardly ever happens with prerecorded titles, just recordables.
During the squealing, you will not be able to make a decent recording. You will first have to clean the felt pad.
I’ve had quite some prerecorded DCC’s that I bought where I heard the squealing sound upon first play. After I did the procedure as shown in the video, the sound would disappear.
Thank goodness for that! I was making an old school mixtape and it did this. You never know where some of these tapes had been sitting for 30 years. I was having no issues with the other tape because it was the later felt pad version.