@slaw, I just put in another 600 piece outer sleeve order with Vinyl Storage Solutions. Michael came up with a brilliant new design: a "multi-purpose" sleeve, open at both ends with a flap and resealable glue strip. It can be used on the middle section of tri-fold covers (such as The Band’s Rock Of Ages), or in tandem with one of his double pocket sleeves on the gatefold cover of single LP’s. The double pocket sleeve is available in both 4mil and 2mil versions, the multi-purpose in 2mil only.