Currently some loaders implement specific compression formats. For example the Acquire loader supports .tar.gz. However, if I have a VMDK which is compressed using gzip this won't work. It would be nice if we could have a generic layer of decompression which handles the gzip (and maybe others) layer, and than let's the other loaders do the heavy lifting. By doing this all the loaders support the gzip format, and we no longer have the need to decompress before using dissect.