I have a couple of older model Food Saver brand machines. They work fine with Food Saver brand rolls of bag material and rolls of bag material I found on E-bay. However, I have tried Zip-Lock brand of bag material designed for vacuum sealers and it is cheap, but not worth a damn. Very difficult to get it to vacuum properly.

"...why, land is the only thing in the world worth working for, worth fighting for, worth dying for,... because it is the only thing that lasts."