Quote Originally Posted by MAubrey View Post
Fuji discontinued the original Acros because some of the materials used in its production were difficult to obtain. So they had to reformulate it in order to rerelease it.
They had no need to discontinue Acros, changing some ingredients in the emulsion does not require to discontinue production and to make loyal cusmtomers move to another film. You make a master roll with the old emulsion and the next one with the following batch of the improved emulsion.



Quote Originally Posted by MAubrey View Post
Ilford had to do the same with their Harman Direct Positive Paper. It was gone from the market for a few years before they were able to restart it again.
Not exactly the same. In that case the separate company Ilford Imaging Switzerland GmbH crashed in 2013, and ilford UK could not manufacture it, it was not a regular product discontinuation but the bankruptcy of an indpendent company that was sourcing ilford UK.