David M BrancatoI format my MiniDiscs for live recording ahead of time by recording null input audio on the entire length of the disc in however many channels I'll be using. This gives me a TOC of one 74 minute song when I begin recording my gig. If the power cuts out during the show or I forget to eject, the previously written TOC lets me play back everything that was recorded.
Most portables handle battery exhaustion during recording gracefully by stopping and writing out the TOC while sufficient power remains to do so. However, if the battery is removed or for some other reason power is cut suddenly, the TOC data in memory will be lost.
Mark StringerRegular earphones can be used in a pinch as microphones. Just plug them into the microphone socket and presto, usable quality stereo recording without having to carry around your microphone!
Mike HarmanRadio Shack sells condenser mic capsules for $1.99 that work perfectly with my Sony portable MD recorder. All you have to do is solder the leads to a stereo cable/miniplug and you're in business, for a total cost of under $10. The sound is really amazing, very wide response and fidelity.