FVerbaas posted at 6:57AM Thu, 02 July 2020 - #4393707

Other question why convert .png to .rsr when target app Poser5 accepts .png's? I started with Poser5 and .rsr was a thing of the past then already.

.png formatted thumbnails were usable way back when Poser Pro Pack (PPP) came out for Poser 4 in the late 1990s. This is the first time in all that time that someone asked to convert thumbnails from .png to .rsr, though.