06-07-2013 12:52 PM
Seagate Backup Plus 4 TB (USB 3.0)
Oppo BDP-93 Bluray Player
I have lots of Bluray movies on my Seagate drive. Up until recently, I plugged into my Oppo, it was recognized, and I went to the Video folder and started watching movies. Today, I plugged it in and it is no longer recognized. I get what appears to be a notification that a USB device is plugged in, but then "no device" when I go to the same Video folder on the Oppo as I did before. For whatever reason, my Seagate FreeAgent 640 gb portable drive (USB 2.0) works fine still.
I'm wondering if there is a system file or folder that came installed with the Seagate Backup Plus that might have been corrupted or accidentally deleted. I spoke with Seagate tech support today and they told me there are no such files/folders. The only meaningful suggestion I got was that my Oppo might not be compatible with USB 3.0, but why did it work previously if that is the case?
Nevertheless, I can't figure out why the drive doesn't work with my Oppo when it did only a week ago. For troubleshooting, I reset the Oppo to factory default, and also checked for software/firmware updates but there are none.
Any feedback is greatly appreciated. Thanks!
06-07-2013 01:23 PM - edited 06-07-2013 01:26 PM
What is the partitionstyle of this drive, MBR or GPT* ?
Which Filesystem is used, NTFS or exFAT or FAT32 ?
Have you copied another Video to the disk before the error appeared ?
*) to see the partition style in Windows:
in start/computer rightclick on the drive, click "Properties", click "Hardware" tab, choose the drive again, click "Properties", in the new window click "Volumes" tab, click "Populate", now in the "Partition style" line you can see the partitionstyle, MBR or GPT.
06-07-2013 02:56 PM - edited 06-07-2013 03:04 PM
The partition style is MBR, and there's no reference to either NTFS, exFAT or FAT32. I've been copying videos to the drive up until earlier this week.
I spoke with an Oppo rep who thought, because it's a 4 TB drive, it must be GBT - but it's not.
I can see it fine when it's connected to a Windows computer. It just is not "mounting" (the Oppo rep's term) when I connect to the Bluray player. I also just tried connecting the Seagate to a less expensive, but brand new, Samsung Bluray player and it was not recognized, either.
06-07-2013 10:55 PM
Im astonished either that the drive was ever seen by the oppo!
MBR partition style drives could have only 2,2 TB (2 TiB) capacity, all bigger drives must have GPT as partition style, because the 48 Bit LBA Adressing could not adress more than 2,2 TB with the standard 512 Byte sectorsize. All advanced format drives with 4K (4096 Byte) Sectors today emulates 512 Byte Sectors because Windows up to Win7 could not handle the 4K sectors (Windows 8 can).
The most used Windows OS at the time of introducing drives bigger than 2,2 TB was XP, but XP cannot use GPT, so the vendors used a trick for external drives to get XP customers: the PCB of the external drives will reemulates the 512 Byte Sectorsize to 4K, because so XP could adresses the full 4 TB (3720 GiB) of such a drive.
Now to the oppo, almost all consumer electronics can use only drives with MBR partition style and FAT32, some can use NTFS but i know no one which can use drives larger than 2,2 TB (2 TiB).. (Alternatively an Unix/Linux filesystem is used, which is not the case with the oppo)
The normal behaviour on drives like yours is that it will not be recognized at all, because the consumer electronics awaits a MBR style drive with 2,2 TB (2 TiB) ans 512 Byte sectors.
(See your Samsung BR player)
I am amazed that the oppo had ever recognized the drive at all (As was the oppo support).
This brings me back to the third question of my first post, between the last succsessful contact to the oppo and the first unsuccsessful contact, have you copied one or more videos to the drive?
How much of the drives capacity is actally used?
You can see the file system if you rightclick the drive in windows, click "Properties", on the "General" Tab is the type of the drive and the file system.
06-08-2013 12:04 AM
HUGE mistake on my part!!!
The drive that was working flawlessly was in fact a Seagate 2 TB. When it was getting full a few months ago, I bought a Seagate 4 TB, moved all content to the new drive, and just continued to add content - never once connecting it to my Oppo to see if it actually worked. When I finally did today, I just assumed I had done so earlier. In fact, I did not. My apology for wasting the forum's time with a factually incorrect question.
With that said, can anyone recommend an inexpensive Bluray player that actually does work with a 4 TB drive? Thanks!
06-08-2013 04:11 AM - edited 06-08-2013 04:11 AM
Not one i know (cause see the lines between astonished and amazed).
Maybe some Multimedia Players could do but im not sure.
I would return the drive and get 2x2 TB instead, if your retailer will do that.