I am controlling my Samsung LCD TV, my Samsung HTS, my Sony Blu-Ray player, my old JVC VCR, and my AT&T Uverse DVR with my remote.
If you go to this site..... http://myremotesetup.com/EasyZapper/New/Main.asp?WebProcessAction=Start&ReturnUrl=%2FEasyZapper%2F%2E%2FNew%2FProcSpice%2Flanding%2Easp&ClassId=PrSpice%2EProcSpice&RelativePath=ProcSpice%2F ..... you can check compatibility with all your devices.
My 550 works flawlessly with my equipment and was really easy to set up.