Michael, thanks for your input. I don't need the reels to do transfers with, I need them for storage to avoid having to transfer the tape to another reel size, which would require a ridiculous amount of work to transfer all the information from the boxes, other storage containers, and shelving in our vault. So, if anyone has any information about suitable 5'' reels for long term storage, I'd appreciate the help. To your point, could you describe the symptoms of a machine underperforming due to hub size? I am using an ATR-102 that has very sensitive and unforgiving tensioning system and I have noticed that it doesn't handle too little weight very well. In fact, it won't play back 7'' reels without the added weight of the NAB adaptors. However, it does handle 5'' reels seemingly without compromise while using the NAB adaptor. Alex Kroh From Michael Biel: "Actually the small-hub 5-inch reels are not perfect for archival use,=0Aslo= tless or not. The hub is too small to be used on almost any=0Aprofessional= machine. The machines are not designed for reels that have=0Ahubs that sm= all -- even using the "small" setting on the machines. That=0Aselection is= mainly designed for the weight differences between 7 and 10=0A1/2 inch ree= ls, and only secondarily on the hub size. And they do not=0Aexpect as hub = that small and a reel so lightweight, even when filled. =0AEven the small A= mpex 600 series portable could not use a small-hub=0A5-inch reel. =0A=0AFo= r 600 feet of tape, a large-hub 7 1/2 inch reel is far, far superior"