"OS error" when trying to read DVD

[dickcavett]

Brand-new DVD that plays fine on a DVD player, and in the DVD player app.

But when I run MakeMKV 1.16.5, I get the following errors when I try to open the disc:

MakeMKV v1.16.5 darwin(arm64-release) started
Optical drive "BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982d" opened in OS access mode.
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '524288'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '524288'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '1048576'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '1048576'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '32768'

Any ideas? Thank you.

[dickcavett]

Tried again and got more messages:

MakeMKV v1.16.5 darwin(arm64-release) started
Optical drive "BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982d" opened in OS access mode.
Using direct disc access mode
Error 'OS error - (ipc/send) invalid destination port' occurred while reading '/VIDEO_TS/VTS_05_1.VOB' at offset '0'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '0'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading '/VIDEO_TS/VTS_06_1.VOB' at offset '0'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '0'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading '/VIDEO_TS/VTS_07_1.VOB' at offset '0'
Error 'OS error - (ipc/send) invalid destination port' occurred while reading 'BD-RE MATSHITA BD-MLT UJ240ES 1.21 HK18 105982' at offset '0'
Title #1 has length of 34 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Cells 9-end were skipped due to cell commands (structure protection?)
Cells 9-end were skipped due to cell commands (structure protection?)
Cells 27-end were skipped due to cell commands (structure protection?)
Title #4 in broken titleset was skipped
Title #5 in broken titleset was skipped
Title #6 in broken titleset was skipped
Failed to open disc
Failed to open disc

This seems to be copy protection and not a bad disc (the disc plays fine otherwise.)

[dickcavett]

I should mention I can't get Handbrake (with libdvdcss installed) to rip this successfully, either.

[MartyMcNuts]

I should mention I can't get Handbrake (with libdvdcss installed) to rip this successfully, either.

I haven't ripped a DVD since about 2005!! Anyway, does the ole DVDShrink application still work? That's what I used to use way back when...

[dickcavett]

does the ole DVDShrink application still work?

I'm on a Mac, so it's not available to me. (I have access to a Windows PC, so maybe I will give it a try if I get the chance.) Part of me thinks it's unlikely that a 15-year-old app would more likely work than apps updated in 2021... but you never know.

Thank you for the suggestion!

[dcoke22]

Is that drive powered via USB? Does it have two USB connectors and are they both connected either to the computer or two a powered USB hub? I wonder if your drive is running out of power.

[dickcavett]

Is that drive powered via USB? Does it have two USB connectors and are they both connected either to the computer or two a powered USB hub?

Great call! That was the problem! (Or at least, -a- problem. I'd suspected power might be an issue, but I never thought it would manifest itself with those kinds of errors.)

Thank you!