I lost one if the disks to a 2 disk game, is there any way to play the game or do I need to...

Hi and thanks for reaching out. I hope you’re doing well. I'm an Independent Advisor and a Microsoft user like you and I'll be happy to help you.

Unfortunately, if you've lost one of the disks to a 2-disk Xbox game, you would need to purchase a new copy of the game, as the disks are often sold as a set and not individually. You might consider checking online marketplaces such as eBay or Facebook Marketplace for used copies, or reaching out to the game's publisher or developer to inquire about replacement options.

it depends on which disc you lost, if you still have the boot disc, then it could likely satisfy the games the RM requirements. You would have to remote install it from the Xbox app on a mobile device

you'll just have to experiment and see

I was playing for a long, long time thinking wow. I was doing side missions and main missions on one disk. I was thinking it was disk one, but then realised it was disk 2. Theres deffinately less disk changing when you're like halfway through the game onwards.
Though you need to change disk for the ending missions. But over the entire game I had to change like 3-4 times and that was it.

Huh it's two disks like sword said I'm guessing you got a used copy?

As mentioned by sword

The one disk is drm which you pop in first

Then put the install disk in after it confirms and to install the game

Then use the game disk to play

Disclaimer I own cyberpunk 2077 and it is 2 disks

One labeled install

One.is game.disk you need the game disk to download the smart delivery update to series x version but you still need to have the game installed

this is what i do i put in black ops 2 it make growling sound says play game on disk so i start game and as soon as it starts it says disk is unreadable... but it doesnt seem to be xbox or disk the disk runs perfectly on my brothers xbox but then my xbox
play every game perfectly but black ops 2