If you google this technical white paper from HP (a major LTO vendor) you'll see that the format (in all iterations) is designed to be pretty durable: 4AA4_378

If you google this technical white paper from HP (a major LTO vendor) you'll see that the format (in all iterations) is designed to be pretty durable: 4AA4_3781EEE.pdf In particular, they test dropping tapes hundreds of times from 30" AFF onto concrete in different orientations, making sure they'll still work properly. Not every vendor does this, but they all like to be perceived as archival quality and durable. I wouldn't be too worried.