on the iPad JRemote starting JRiver App and it says connected to MacBook Pro
I always have to switch the ZONES to >this devicd to player.
I don't use JRemote. Maybe post in the Remotes forum and maybe someone there can help.
Also, how do I completely remove properly ALL JRiver old version 20 and 21 all the builds.
For version 21 builds, you can just delete the DMG files. If you have any extra Media Center apps in /Applications you should remove those too. I don't think you should have any of those though.
For version 20, there is probably a Media Center 20 in /Applications. You can remove that. There are likely library (database) files left over from MC20 also. But you should be cautious about removing these, as it's possible that some of your album art might be in these folders. The folders in question are:
~/Library/Application Support/J River/Media Center 20/
I left that directory alone on my system. I didn't see any good reason to remove it and it was pretty small.
Brian.