i doubt it. from what i've read up on in the past day, ss's drm encryption key for an oma file is not version-specific; it's installation-specific. so, installing an old version of ss will not allow you (or me) to read oma files that were created with another installation of ss -- even if it's the same version number on the same computer. sucks, but that seems to be the case. and i suspect that the old wave conversion tool, like himdrenderer, would not able to access oma files, even if 2.1 was installed, since the drm would prevent it from reading them. woj