I Have been a Bix fan for a couple of years now, but it has only been recently that I aquired some original 78's (imagine my suprise opening up one of my gifts last birthday and opening up a full book of Trumbauer discs, most with Bix, almost brand new!) Now i've been collecting 78's since 3d grade, but most of them are pretty worn out and storage in old sleeves was always sufficient. But i treasure these new discs, and, as i said they are almost mint and i would like to keep them that way. Would anyone know if the old record album book sleeves are acidic? Any other tips? Thanks so much!