Bronica ERTSi polaroid back

[coolace]

I have a Bronica Ertsi and just purchased a polaroid film back. It is said to use 667 or 107 polaroid film. I interested in B&W film. are these films still available? what alternatives do I have?

[kyriios]

All film are discontinued
- Color FP-100C can still be found
- Black & White FP-3000B can also be found but as it becomes rare, price are going up

Other film from Fuji or Polaroid are expired since a long time , price are high and results quite random .