Hard Disk File System investigation for the Magnavox 537, 535, 533, 515, 513, 2160A, 2160, 2080 & Philips 3576, 3575 - Page 8 - AVS Forum | Home Theater Discussions And Reviews
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post #211 of 219 Old 02-21-2017, 05:35 AM
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Format a replaced hdd MDR513H/F7.

Hi DVR Geniuses!

I am impressed by your knowledge base. I am having problems with my Magnavox DVR MDR513H/F7. I recently replaced its hdd after the original died. I found the identical HDD (size, modal, manufacturer, etc), and installed it after formatting it fat32. I get a error within the DVR saying can't record to it. I have a feeling the format is proprietary. Any suggestions? Thanks for your help!
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post #212 of 219 Old 02-21-2017, 05:56 AM
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Quote:
Originally Posted by Paradoxgrowth View Post
Hi DVR Geniuses!

I am impressed by your knowledge base. I am having problems with my Magnavox DVR MDR513H/F7. I recently replaced its hdd after the original died. I found the identical HDD (size, modal, manufacturer, etc), and installed it after formatting it fat32. I get a error within the DVR saying can't record to it. I have a feeling the format is proprietary. Any suggestions? Thanks for your help!
FAT32 doesn't work. Use the proprietary setup procedure.

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post #213 of 219 Old 02-21-2017, 07:03 AM
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Yup ... works like a charm. Seems to me I had a couple little glitches getting the Maggie 537 to recognize a new blank drive, but once it finds it, the rest is short and consistent.

PS ... currently have four 1tb drives in the rotation using the external dock ... only "problem" I've had is the drive occasionally disappears, but that's because of a cheapo cable ... wiggle that a bit and reboot, and it comes right up again. I did pick up a better cable, but of course, it's been working fine since. Go figure.

Life is a journey. Time is a river. The door is a jar ...

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post #214 of 219 Old 02-21-2017, 07:35 PM
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Thanks

[quote=mrmazda;50929729]FAT32 doesn't work. Use

Wow thank you so much! That's so nice. My head was source from banging it against the wall!

Ps saw your rig. Rotating hdds! So jealous!

Thanks again guys
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post #215 of 219 Old 04-21-2017, 11:52 AM
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Greetings!

So is there any news about how to rescue/undelete deleted tittles from our Magnavoxes?

As always, all of you make an awesome team.

Cheers.
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post #216 of 219 Old 04-21-2017, 12:10 PM
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Quote:
Originally Posted by profhat View Post
Greetings!

So is there any news about how to rescue/undelete deleted tittles from our Magnavoxes?

As always, all of you make an awesome team.

Cheers.
While some solutions have been tried successfully... my help file is here but 1st 3 internal links don't work anymore... one user tried my suggestion for the cdroller app, which worked.

cdroller app

That's as much as I can tell you.

Last edited by 7558037; 04-21-2017 at 01:20 PM.
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post #217 of 219 Old 04-22-2017, 03:26 PM - Thread Starter
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Quote:
Originally Posted by profhat View Post
Greetings!

So is there any news about how to rescue/undelete deleted tittles from our Magnavoxes?

As always, all of you make an awesome team.

Cheers.
I have not looked into that. I really don't have time to do so right now either.
You should look into the help Wajo pointed you to.

From what I've seen the directory entry will be totally blanked out. So the video would still be on the disk though but you won't be able to put them back together unless they were all in a row.
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post #218 of 219 Old 11-04-2017, 10:24 PM
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In December 2014 I wrote here of my success to upgrade from a 320GB to a 500GB, IIRC in my #1 513. My own disorganized notes and logs, though extensive, don't make clear what is needed to repeat that success.

About two weeks ago my #2 513 locked up trying to play a recording made 9 months ago. I removed and checked its OEM 320GB WD3200AVVS HD with a Linux PC and Smartctl, which confirmed the WD's 20906 hours resulted in 131 pending sectors. Acceptable pending sectors is 0. So, I ordered a new old stock 512 byte sector 500GB WD5000AVDS reportedly manufactured January 2013 and set about recovering to a file from the old disk using dd_rhelp. It "successfully" created a file of 305245M. When the new HD arrived I installed it, initialized it, and made and deleted 5 second recordings twice. I then removed it, reconnected it to the PC, and did the following:
Code:
# dd if=wd3200avvs8180.img of=/dev/sdc seek=2008040 skip=2008036
623134412+0 records in
623134412+0 records out
319044818944 bytes (319 GB, 297 GiB) copied, 15120.5s, 21.1 MB/s
That took approximately 4.25 hours via eSATA connection. I then viewed the first sectors and noted at sector 3, address 00400h the code
Code:
48 44 44 46 73 20 30 30 2e 30 37 20
creating the string HDDFs 00.07, same as before initialization. So I installed it again, only to find no recordings. Then I revisited post 204 in this thread about need to hex edit some bytes to indicate the correct disk size and "file" locations. I then changed the 320G disk size
Code:
"b0 ea 42 25 e3 a3 40 25 cb 46 02 00 02" at address 0x800 (sector 4) to 500G
"30 60 38 3a e7 23 35 3a 47 3c 03 00 02"
and new locations of the changed data "files" for 320GB:
Code:
MPG_SEGMPG_SEGM.DAT = d9 a3 1e 00 0c 00 00 00 06
and
AV001_0AV001_00.MPG = e5 a3 1e 00 00 00 22 25 06
to 500GB data at editor addresses
Code:
0xB80 = d9 a3 1e 00 10 00 00 00 06
and
0xBC0 = e9 a3 1e 00 00 80 16 3a 06
which are on the fifth sector of the target.

The good news: Re-installation once again showed all 144 recordings, and #74 that was playing when it locked up has now played all the way through. SP freespace had been somewhere around 24 hours. Now it's showing 94+.

The bad news: Either dd_rescue apparently was not able to copy all program sectors successfully, or the bad/missing sector(s) are sectors related to the commercial deletion I made following recording it, more likely the former, because what dd_rhelp actually reported on completion was:
Quote:
100.00%(99.99%/0%)... All your data has been dd_rescued !! Please note that it doesn't mean that it has been RECOVERED.
#74 causes the 513 to get lost @19:59 and takes somewhere around 20-30 seconds to recover and finish the rest. I have that recording at lower quality on DVD. The bad spot is just before the end of a chapter, and the recovery takes place right where the new chapter starts. The loss seems to be approximately 11 seconds of program. I'm happy it wasn't worse.

If you are having problems with HD recording playback, and your recordings are important enough, consider removing the HD from your DVDR and checking it out on a PC like I did. This is the second 320GB WD3200AVVS HD to go bad in one of my Funai DVDRs.
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post #219 of 219 Old 11-06-2017, 12:16 AM
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Quote:
Originally Posted by mrmazda View Post
...disk size
Code:
"b0 ea 42 25 e3 a3 40 25 cb 46 02 00 02" at address 0x800 (sector 4) to 500G
"30 60 38 3a e7 23 35 3a 47 3c 03 00 02"
Code:
30 60 38 3a translates to 976773168 sectors
Actual addressable disk size in sectors as reported by Linux Fdisk and Smartctl for the WD5000AVDS is
Code:
975724592 = 30 60 28 3a
The difference is exactly 1MiB, 1048576 sectors. After looking back at post 172 it looks like later production WD5000AVDS must have more sectors allocated for remaps, and fewer directly accessible. 30 60 28 3a were the bytes on the new WD5000AVDS as freshly initialized. I just got done changing my new one to 30 60 28 3a. SP freespace is now down to 52h04m.

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