I have read
this guide on cleaning VCRs, but I have a few questions.
1) Are there any signs or symptoms that a playback device needs cleaning? How often should I clean it or how will I know it needs cleaning?
2) Anything specific to other tape formats like Hi8 or MiniDV?
3) Anything I should look out for when cleaning a camcorder as opposed to a VCR? The parts are smaller and seem easier to break, so I need some reassurance before I crack it open and fuss something up.