I'm curious, what is the advantage of using your emReader over something like Alembic? Regarding the pure cache reading functionality I must admit that emReader probably does not have any advantage over something like Alembic. But emReader can do a bit more than just read cache files: first of all its usage is extremly easy and straight forward. Furthermore it has a set of nice little features that can come in handy, such as fixing corrupt edges, closing holes in geometry, smoothing, applying thickness to the mesh, blurring Normals, UVs and Vertex Colors as well as a few other little things. Finally it supports - aside from RealFlow ".bin" and Wavefront ".obj" - my proprietary file formats ".emp2" and ".mzd", which can be useful if you wish to import geometry that was created within Softimage. The main motivation to adapt emReader to Maya was to become familiar with Maya's SDK before adapting more complex plugin emPolygonizer4. Hope this makes sense! Cheers, Eric