Although you can convert BlindWrite disk images to CloneCD images (.img), you will need whole set of BlindWrite files and not just one of them. So if you can have access to all the images, subchannel, control and other files that form a BlidnWrite image, you can certainly convert it to something else.
Convert Blindwrite control file to CloneCD image file.
We found 2 software records in the database related to .bwt to .img file format conversion.
Microsoft Windows software - convert bwt to img on Windows
A disk burning and ripping software
Convert from bwt file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned bwt to img. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
One of the disk image handling utilities and the default program for ISZ images