I use a Sony CCD-TRV22, its older but works good, plus you can get them on ebay for under $100.00, I have got them for $30.00 to $40.00 shipped. I have three now I mean two, I droped one out of the treestand last year. There are many models that take the same battery, Here are a few so you can search around,
CCD-TRV11
TRV12
TRV21
TRV22
TRV33
TRV211
TRV212