Yes, both are correct. Click on files and list by bit rate once narrowed down to the ones you want to delete >> select one then click "Control A" which will select them all. Right click and select delete from media center library and computer. This choice will remove all traces of these files from your My Music library and JRiver MC library.
How Do I Delete Low Bit Rate Songs From My Library
I really, really screwed up.....I was ripping a lot of CD's into my computer and I must have hit the wrong button....I accidentally added about 4500 low bit rate (between 150 and 160 bit rate) duplicates onto my Windows 7 music library. They show up in my J River Library as well.....How can I delete them without individually clicking on each song? Any help would be greatly appreciated. TY!