elgatodelnoche
Sr. Member
- Aug 21, 2013
- 333
- 119
- Detector(s) used
- Garrett Deepseeker ADS
- Primary Interest:
- Prospecting
Those are probably multi track (4 track) cassettes, used on multi track recorders.
I can use any type of cassette on my 4 track cassette recorder. I think most are like that.