- dynamic size hardfile support (latest beta of WinUAE has this feature)What does that mean, exactly? I don't suppose AmigaOS supports online resizing of filesystems?There are disk image formats that store only non-empty sectors - empty sectors does not occupy space on a host OS disk.In theory that doesn't really need application support on Unix/Linux, since the host filesystem supports sparse files by default.
So does Windows but point is to be able to transfer hardfiles without losing "sparseness" and/or needing to compress it. (USB sticks generally are FAT and it won't have sparse file support for example)