After a long slog (which I will write up in my Trail Guide blog before long), I eventually had my HDR's drive contents decrypted and an SMB link between the HD and the HDR, and lo and behold I could navigate the HDR internal and external drives as if they were attached directly to the HD by USB. Almost. The purpose of doing this (in case anybody hasn't been keeping up) is to circumvent the 4GB bug in the Humax DLNA client code, which cuts off streaming playback at the 4GB point in any file that is at least 4GB in size (due no doubt to somebody making a schoolboy error and using a 32-bit variable to index the file). The problem with my SMB link is that the HiDef playback (which the native DLNA plays fine - up to 4GB) is jerky and the sound breaks up. The same is true when played using Splash Player Lite on a PC (via a windows file share), which I had at first attributed to WiFi or the processing power of my PC. The common link in these two configurations is the network itself (which includes a HomePlug AV200 link, but the network is also common to the DLNA playback which works fine) and the SMB service on the HDR. So, the question is: is the samba package fundamentally slow, or are there some tuning configuation settings that can be tweaked? Answers on a postcard... Anyone wishing to follow in my footsteps start HERE (click).