IMG Media source with 16 bit PNG files

I am unable to get the IMG media source to work PNG images in the RGBA16f format. It works fine with RGBA8 but I need to use the 16bit format.

Does anyone know if you can use 16 bit images with the IMG media source?

Photoshop doesnt seem to be able to open them. As an alternative to using the IMG media source I was going to create a flipbook texture but I cant do this as I cant open the images in Photoshop in the 16 bit format.

Any suggestions or thoughts would be much appreciated. Thanks.

I found out that GIMP is able to open these 16 bit png images. Might be helpful to someone else.

I would still like to know if I can use a 16bit png with the IMG Media source? Anyone have any ideas? Thanks.