It is true. Inter-block gaps are huge and easy to spot/splice. That is why writing short tape blocks wastes so much tape.
On 6/27/19 8:21 AM, Warner Losh via cctalk wrote: > I've also heard people tell stories of using this fob to find the end of > the marks and records on mag tape to splice together tapes that had become > broken and ruined (so they'd cut the damaged records out at record > boundaries to recover at least some of the data on ANSI formatted tapes). I > don't know if this was a tall tale designed to impress over a beer, or the > sad confessions of someone that had gone through a lot of pain and needed > to share... > > Warner >