My old tape deck departed in a yard sale last month along with a really cheap VCR, and my remaining S-VHS VCR is connected directly to an input on my DVD recorder. There are a few analog sources that I could see using something like Pro Logic II with, such as a LaserDisc player, VCR, or non-HD digital cable box that lacked digital output, as any of those could provide a stereo signal that including Pro Logic decoding cues. I have on occasion also used the analog output of an iPod and 7 Stereo for some background music, although if I were to do that today I'd use my SoundBridge via optical.