Average Rating: 5
Retro data recording with 4Kbits/s is absolutely no problem with these. Went even up to 6Kbit/s with a Commodore datassette. But you might want to add about 30% backup stash to your orders since those old tape drives tend to make salad of this product. Perhaps the tape is too thin for 1980s hardware. Don't really know. However, the tapes that make it can be overwritten a hundred times with no detectable loss of quality.