First thoughts are ...
Recorded on DVD+R and disc ‘not closed’ session still open.
Take it back to source and get the closure done there.
In the end DVD-R is better.
What is the file extension?
Sounds like,maybe the file format is Mac specific? You might need codecs so to play it on windows computer.
If you have VLC. Media player, it might be able to play it. Worth a try. It’s a free player, and a well respected one.
Can you read any contents via Windows File Explorer?
What is the format of ‘the event’? Mp4, Mpeg, MOV, AVI are some common video formats. If Windows File Explorer can read the file list, you might be able to copy the video file to Windows and play it.
It could be that the DVD is corrupted.
More info is needed to diagnose the problem.
Put it in a REAL DVD player and see what happens.
If it doesn’t work, then the problem is probably it was not recorded correctly.
If it works, then it’s your setup.
“Will a dvd recorded on mac equipment not play on a PC? Or is there something going on with the disc?”
Did you bother to Google this first?
Windows needs a codec that you have to purchase from MS. Or you can download a 3rd party program to play it like VLC.
You’ve probably got an APFS formatted disk (APple File System), but if your friend has a very old Mac, might be an older file system like HSF+.
But assuming that it’s APFS, you’ll need a third party utility in order to get the disk to be readable on Windows 10 or 11 unless Microsoft has very recently published a native driver.
Best bet is to verify on your windows machine the correct windows version, and then use Google to find the most current driver or third party software, using APFS and your windows version in the search term. There used to be a company called “paragon software” that had a solution, but can’t vouch for current viability. Worth a try though.
DVDs as a video playable format (DVD-R or DVD+R) need to have mpeg2 video 525 (NTSC) or 625 (PAL) lines, Dolby AC-3 or PCM audio. Upon conclusion of the recording the disc needs to be finalized by the recorder to be interchangeable with other DVD players in computers or stand alone players.
DVD-R or +R could also be used for data recording, which could include HD video sizes and bit rates, VLC player could likely play those files.
windows CDs usually play fine on Macs, but not the other way around.
Thoughts? Pings?
Does your friend's computer look like this?.....................
If you only want to read a Mac formatted disc (not write) you anc use HFSExplorer. It’s completely free, though not fancy.
You need to have JAVA installed to use it, also free.
Install it from here: http://www.catacombae.org/hfsexplorer/
I use Nero 11 to play things on my DVD drive. I don’t know it this would work.
You asked this exact same thing 8/9/22 also, and just like this time, you did not bother at all to even reply to anyone.
https://freerepublic.com/focus/f-chat/4084269/posts
What’s with that?
(Remember that files and disks that people give you can have viruses, so DO scan the disk before you do anything.)
If there is an MP4 file on that disk, the best thing to do is to DRAG that file over to your computer, right to the desktop is fine, it will copy to your computer. You can delete it later if you no longer want it. It will run better on your computer drive if there is something quirky withy the DVD drive.
(If there is no file apparent to copy, then he sent it to you incorrectly. There are some programs you can install that will recognize MAC specific file systems, but they are quirky and probably not worth it for a one time file.)
Then right click it that file on the desktop, and it will probably open with some MP4 capable program on your computer, if you have to pick one then VLC is great, choose it. Use the “Open with...” menu option, VLC will probably be one choice.
But you should reply some to all the people you specifically asked TWICE for help, this is a forum and if people are going to read and reply we may all learn something when you write back and answer people’s questions about what you tried, and what worked.