LAST EDITED ON 26-Sep-06 AT 07:50 PM (PST)
Sony used to make an incredible cassette recorder using a PZM (pressure zone microphone)The PZM mic is placed on a table, or wall, and sometimes on a piece of plywood suspended from a ceiling. It's best use is for lectures.
Whatever type of recording device you get, this may be the mic for you. You may find a used one cheap on ebay, it may or may not need a battery depending on brand. If it has a 1/4" phono plug, you can always get a convertor plug at Radio Shack.
Here's one that's not too expensive:
http://www.activemusician.com/item--EM.CRW-PZMSG
BTW, if the lectures are a hour or less, nothing is wrong with a cassette recorder. Chances are you won't need to digitally store the lectures as you'll probably never listen to them again in your life! I doubt I'm not the only one that has 100 hours of incredible lectures that I've never listened to... (and I have great transcription hardware and software for microcassettes, cassettes, and Sony digital voice recorders....) LOL
NEWS FLASH: just found a cassette beauty on ebay coming up in a day...not a PZM but direction mic, slower recording speed if wanted, and built in speaker that has balls. Show me a digital recorder with a speaker bigger than 1 inch that you can actually hear clearly and I'll eat my shorts! Who needs to use headphones or plug into a computer? Advances in tech are not always about quality...
ebay item 160033555493
http://cgi.ebay.com/SONY-TCM-23DV-Pressman-Portable-Cassette-Recorder-new_W0QQitemZ160033555493QQihZ006QQcategoryZ48689QQssPageNameZWDVWQQrdZ1QQcmdZViewItem