(02-11-2011 08:51am)DaveR Wrote: I think the manual states only FAT or FAT32 formated drives are supported.
It also says:
Land Rover does not recommend the
use of a Hard Disc Drive via the USB link
while the vehicle is in motion. These
devices are not designed for in car use
and may be damaged.
I'm an IT guy and can tell you that the reason for the disclaimer for the drive being damaged has nothing to do with connectivity. It would be simply an issue of the drive taking jarring vibrations while in use from driving. This could cause physical damage to a spinning disk. However, any of the pocket hard drives made by Western Digital, Seagate, Toshiba or Iomega, that is listed as a "travel drive" usually has enough dampening to protect it from physical damage. Also, if you find a hard drive with a large enough read cache, something like 16mb or 32mb, it should be more than enough, since most MP3's would be less than 8mb, that would mean that the drive would read the entire song into memory and let the drive stop spinning, thus reducing the chances of damage.
Another thing to consider is, if you're looking for a large amount of storage, you could always go with a small external SSD (solid state drive). They are more money than the spinning discs, but they offer no moving parts, lower power consumption and faster drive access.
Because I don't want to put a lot of wear on the actual USB port in the car, the idea of keeping a hard drive is good for me. I can disconnect the cable from the drive and leave the cable in the car always plugged in, or I can put in a small USB extension cable (3") and just connect everything to that. In my case, I'm putting in a USB reader for a microsd card, and have a 32gb card that I will keep in it. When it comes time to update what's on the card, I can just pop the card out, without having to remove the thumb drive from the USB slot.
As far as the hard drive not being recognized, the reason why is one of 2 things:
1. The drive was formatted NTFS, which is the default format type for Windows 7 when formatting external drives
2. The drive is an older 2.5" drive, which required 2 USB cables for power, and the drive might have had enough power to power the drives controller card, but not initialize the physical disk.
Also, when talking about video file formats, while the unit can play MP4 and Divx, you may have difficulty if the file container is not compatible. An easy way to test is to change the name of an MP4 file to .AVI It won't cause any issues, but will rule out whether or not its just a naming convention issue that the unit won't recognize files with certain extensions.