I wanted to try out the recording capability of my new LG LM760T. I connected my 600GB 2.4inch hard drive in a USB caddy to the USB socket of the TV, and set it up to record. However, the LM760T will not allow recording until it has formatted the drive. This is a real pain, as I use the hard drive for moving large video files around and for backup. When the LM760T formats the disk, it deletes any exiting partitions and uses all the space on the disk to create two new partitions that are not readily accessible - at least not on Windows. When I then connected the drive to my Ubuntu Linux box, I could see that the LM760T had created a large partition of 596GB and a small partition of 47MB. The large partition (the first one on the disk) was formatted as JFS and the small partition was formatted as Ext3. But it's a bit more complicated than that, because the normal Partion ID/Filesystem type of these partions on Linux would be 83. However, the LM760T creates both partitions with a Partition ID of A2. This is an unknown filesystem type for any other systems or tools. I guess this is part of LG's deliberate policy of obfuscation. So what do you need to do you if you want to record using your LG Smart TV, but still use the disk for something else? Well, unless you're happy with using the JFS partition for whatever you want to do, you will need to repartition the hard drive to make 3 or 4 partititions. The first two (JFS and Ext3) for the LG, and the third, with whatever filesystem you want, for the other stuff. You can't use the second LG partition (the Ext3 one) for anything else, because if you increase the size to anything useful, then your LG will take hours to connect after you plug it in. So here's a step by step guide to formating your hard drive for use by the LG while still keeping a partition for other stuff. First you will need a Linux box - I used Ubuntu 12.04. You might be able to do it using a Linux boot CD on a non-Linux PC, without installing Linux first, but I haven't tried this. I also use a Windows PC to fix the partition ID. Connect your hard drive to the Linux box. You need to make sure the disk doesn't contain any data that you want to keep, as the first step is to delete all existing partitions. You need a partition manager that supports JFS and Ext3 to set up the partitions. I used KDE Partition Manager plus the optional JFS package. You can install them on Ubuntu using the Software Center. First delete all existing partitions. Don't forget to apply the changes. Next create a primary JFS partition. The size of the partition is the amount of space you want to allow for LG recordings. I used about half the disk. Next create a primary Ext3 partition. You need to allow about 50MB for this - don't make it any bigger, or else it will take a long time to connect, when you plug the drive into your TV. You can use the remaining space to create a partition of whatever file system type you choose. Then disconnect the drive from Linux, and connect it to a Windows PC. You need to use a physical disk editor to fix the partition IDs. I used Hxd - download from mh-nexus and install it in Windows. Incidentally I tried to install it in Linux using Wine, but could not successfully access the disk. Start HxD, and from the Extras menu, choose "Open Disk", clear the "Open as Readonly" check box and select the correct disk under "Physical disks". You will probably need to choose disk 2 if you only have one other hard drive in the system. Make sure you get the right one, or else you might render your system unbootable. Now look for the two partition IDs, 83, which are located in the first disk sector. On my hard drive these two bytes are located at offset 1C4 and 1D4 (16 bytes apart). Change each of these two bytes to A2, and then close HxD. Now you're done. Disconnect the hard drive from your PC and connect to the TV. It should say "Connecting USB", and then after a short wait, you are ready to start recording. You can still use partition 3 for whatever you choose on other PCs and devices, but the one drawback is that you will not be able to play any media files on your LG TV that were not recorded by it. Further thoughts: It would be even better if the video files recorded by the LG could be openned on a Windows or Linux PC. After you have made a few recordings, there will be some files on partitions 1 and 2. You may need to alter the permissions before you can see the files by connecting the drive to a Linux box and entering a command like this one (for Ubuntu): sudo chmod -R 777 [volume mount point path] After making a test recording I found directories 00000001REC, TMP and TS on partion 1, and files LGDB.vol, LGDB.bak, LGLOGDB.vol on Partition 2. There are some biggish files in directory 00000001REC on Partition 1, which I guess must contain video data, but I have not been able to play these files using any of the main media players. Chances are the data is encrypted, so there's not much hope of decoding it, but any thoughts on how they could be accessed are welcome.