All Thanks for this to jimux and the Allsats Team
As we are unable to predict when Technomate will resolve the issue of only some internal sata disks record from enigma we have developed our own solution. Basically we have intervened between the hard disk and the firmware drivers by diverting output to a logical disk instead of direct to the physical disk. The system works well on all the disks we have tested but our resources are limited so we would like all members with TM800 boxes to try it. Whilst it is only necessary if, like me, you have a disk that wont record the system is robust and can be used on any disk.
Installation is two parts.
1. Install the attached DiskUtilities.xml file in /etc/ppanels
2. Open PPanels, Internal Disk Utilities
. Download software - don't worry it sits on the hard disk and does not reduce memory space like addons do.
. Create a disk of a suitable size. The process is slow but you can leave it running and go back to watching TV.
. Set the default recording path.
And now you are ready to record to your internal sata disk, regardless of what make and model of disk you have. We would appreciate feed back, both positive and negative so we can enhance the system if necessary.
Functions
create 20.40.60.80GB disk
Set new default recording path
Move recordings en mass to internal disk/movies, front usb, rear usb
Move a group of selected recordings to internal disk.
Delete en mass all recordings in logical disk
Delete a group of selected recordings from logical disk.
remount disk after a reboot
Timeshift live TV with pause button
Presentation
Only valid functions are shown.
Cannot make disk before downloading software.
Cannot download software twice
Cannot delete or move non-existing files.
Can only move files to mounted devices.
Note: This software will work on any TM800HD image, but the PPanel presentation layer relies on the enhanced Andromeda-HD PPanel interface to show all helptext and output correctly. The Andromeda PPanel has 3 lines of context sensitive help text, a wider window with more characters per line and dynamic highlighting of current line to assist in reading wide output.
************* EDIT: ENHANCED REMOUNT FACILITY **********
Got home, had power failure whilst out and disk not mounted so here is improved version
New users can just replace the /etc/ppanels/DiskUtilities.xml with the zipped version for better manual remount and auto-remount actions.
13:25 10-Nov 2011 EDIT
New DiskUtilities.xml version two has improved tests for valid options. Cannot patch rcS twice. Only show Progress report option when tasks running. Only show Delete files if files exist.
14:01 11-Nov 2011 EDIT.2
Feedback coming it that some boxes seem to have disk mounted at old mountpoint /media/internal-disk So replaced xml file with new version 2.1 to manage this. Also took the opportunity to tidy up some of the presented options.
11:30 12-Nov 2011 EDIT 3
Prevent remount if already mounted
Prevent 'Display Progress' if no process running
16:00 16-Nov 2011 EDIT 4
Speeded up code.
Added facility to individually select recordings to transfer to physical disk.
20:30 17-Nov 2011 EDIT 5
Automated re-mount of logical disk during a system reboot as part of initial software download/setup.
Reboot code uses intelligent selection of loop device name.
06:30 18-Nov 2011 EDIT 6
Changed order of menu items to prevent double copying of recordings. Issue related to poor response from remote control OK button.
11:45 19-Nov 2011 VERSION 3.0 with Timeshift
Added timeshift function, using the loop device for temporary timeshift files.
Also separate timeshift function for member who do not need the logical disk.
I have not tried this myself so I have no idea of its workings 
