Wohoo, my replacement Firefly Blurays arrived. The first set i ordered had a small defect in disc 2, making one of the episodes unreadable in one region. This one seems fine. No read errors.
Good thing I've started to check the discs in the boxsets. I've had a lot of issues with the big 41 disc Stargate boxset produces by VEI. The disc production is of mediocre quality, which is disappointing considering the steep price.