I just noticed B&H has an 85 min DV Tape, same brand as I like so much, but 22 extra minutes. Would there be any negative to this for my Canon XH-A1?

Shows good reviews

http://www.bhphotovideo.com/c/produc..._DV_Video.html

This would be nice for those hour events that get long winded.

The only negatives I can think of are the cost (about 5x dearer than the 1 hour version) and maybe the fragility of such thin tape.

the link doesn't work for me, so not sure what brand you're talking about, but I use the Panasonic 83 minute tapes all the time and they work great for me. (they're actually 85 total)