Star Trek and corrupted m2ts files

Katie Boundary · 29th August 2021, 06:13

I'm currently ripping the Blu-Rays of Star Trek TOS and TNG.

I haven't attempted all or even most of the discs from each series yet, but TOS, season 1, disc 7 and TNG, season 2, disc 1 have both spat out errors about corrupted m2ts files and failed hash checks when I tried to rip certain episodes with MakeMKV. I've examined the discs visually and there is not a single scratch, smudge, or speck of dirt on either of them.

Has anyone else had this problem or is it just my discs? If it's common, then is there a way around it?

gonca · 29th August 2021, 13:30

I have had that error with MakeMKV 0n occasion.
A good cleaning of the disc, sometimes 2 or 3, fixes the issue.
If not, IsoBuster and a couple of optic drives might do.

hubblec4 · 29th August 2021, 13:56

I had no issues with the m2ts files.

Katie Boundary · 29th August 2021, 20:18

Quote:

Originally Posted by gonca

A good cleaning of the disc, sometimes 2 or 3, fixes the issue

Hmmm. I tried polishing one of them in my disc-resurfacing machine and it went from partially corrupted to completely unreadable. I'll add that to my list of reasons to keep buying DVDs instead of Blu-Rays.

Quote:

Originally Posted by hubblec4

I had no issues with the m2ts files.

You've ripped those specific discs?

GMJCZP · 30th August 2021, 00:43

I once managed to rip an animated Batman Blu Ray film by using the dry cleaning of the disc with a SEEDLESS cotton (safer is to use a microfiber cloth) and if this alone does not work, place the disc inside its case in the freezer for about three minutes and then immediately place it in the reader unit. The cold helps the reader unit to recognize the damaged sectors and so the MakeMkv can save the video. The process of placing the Blu Ray in the freezer may need to be repeated until ripping is complete.

PD: Never Polish!

gonca · 30th August 2021, 01:32

Quote:

Hmmm. I tried polishing one of them in my disc-resurfacing machine and it went from partially corrupted to completely unreadable. I'll add that to my list of reasons to keep buying DVDs instead of Blu-Rays.

I actually meant with a clean microfiber cloth

hubblec4 · 30th August 2021, 11:35

Quote:

Originally Posted by Katie Boundary

Hmmm. I tried polishing one of them in my disc-resurfacing machine and it went from partially corrupted to completely unreadable. I'll add that to my list of reasons to keep buying DVDs instead of Blu-Rays.

This could maybe sounds crazy but it worked for me every time.
I don't use a machine, I use toothpaste for scratched discs.

Quote:

Originally Posted by Katie Boundary

You've ripped those specific discs?

TNG discs. (Not the TOS discs)
Yes of course, ripped to HDD with AnyDVD. All discs was fine.

30th August 2021, 16:33

I remember people having problems with TOS BDs years ago (talk of authoring errors, etc, though I don't remember the specifics). There was also a recall, I think, of some TNG BDs. Maybe try a different ripper (DVDFab/AnyDVD).

Quote:

Originally Posted by GMJCZP

Never Polish!

Przepraszam.

Emulgator · 1st September 2021, 21:27

Just tried TOS, season 1, disc 7 for fun, and it worked fine here with that disc.
But I can confirm irrecoverable BD faults coming up here with storage time (maybe 2..4%) and playing counts (+2..4%),
and developing faults with particular editions more often than others (maybe +1..5%).

29th August 2021, 06:13	#1 \| Link
Katie Boundary Registered User Join Date: Jan 2015 Posts: 1,056	Star Trek and corrupted m2ts files I'm currently ripping the Blu-Rays of Star Trek TOS and TNG. I haven't attempted all or even most of the discs from each series yet, but TOS, season 1, disc 7 and TNG, season 2, disc 1 have both spat out errors about corrupted m2ts files and failed hash checks when I tried to rip certain episodes with MakeMKV. I've examined the discs visually and there is not a single scratch, smudge, or speck of dirt on either of them. Has anyone else had this problem or is it just my discs? If it's common, then is there a way around it? __________________ I ask unusual questions but always give proper thanks to those who give correct and useful answers.

29th August 2021, 13:56	#3 \| Link
hubblec4 Matroska find' ich toll Join Date: Apr 2008 Posts: 1,379	I had no issues with the m2ts files. __________________ chapterEditor \|\| mpvMatroska \|\| Matroska-Playback \|\| hSplit \|\| DiscShare

30th August 2021, 00:43	#5 \| Link
GMJCZP Registered User Join Date: Apr 2010 Location: I have a statue in Hakodate, Japan Posts: 744	I once managed to rip an animated Batman Blu Ray film by using the dry cleaning of the disc with a SEEDLESS cotton (safer is to use a microfiber cloth) and if this alone does not work, place the disc inside its case in the freezer for about three minutes and then immediately place it in the reader unit. The cold helps the reader unit to recognize the damaged sectors and so the MakeMkv can save the video. The process of placing the Blu Ray in the freezer may need to be repeated until ripping is complete. PD: Never Polish! __________________ By law and justice! GMJCZP's Arsenal Last edited by GMJCZP; 30th August 2021 at 00:52.

1st September 2021, 21:27	#9 \| Link
Emulgator Big Bit Savings Now ! Join Date: Feb 2007 Location: close to the wall Posts: 1,545	Just tried TOS, season 1, disc 7 for fun, and it worked fine here with that disc. But I can confirm irrecoverable BD faults coming up here with storage time (maybe 2..4%) and playing counts (+2..4%), and developing faults with particular editions more often than others (maybe +1..5%). __________________ "To bypass shortcuts and find suffering...is called QUALity" (Die toten Augen von Friedrichshain) "Data reduction ? Yep, Sir. We're that issue working on. Synce invntoin uf lingöage..."

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29th August 2021, 13:30	#2 \| Link
gonca Registered User Join Date: Jul 2012 Posts: 1,213	I have had that error with MakeMKV 0n occasion. A good cleaning of the disc, sometimes 2 or 3, fixes the issue. If not, IsoBuster and a couple of optic drives might do.