I would argue no, they won't go bad over time. At least within several lifetimes.

To understand my reasoning, we need to understand how (most) discs store data.
Most optical media stores data by using a layer of dye sandwiched between two polycarbonate layers.
The dye material is manipulated by a laser to represent and store data.
Very early discs (post-LD) used an organic dye layer. By the year 2000, all reputable manufacturers migrated to using a synthetic dye layer.
The reason most (very early) optical media was subject to data rot is because early discs stored data in an organic dye.
Modern (2000>*) discs made from reputable manufacturers (primarily Verbatim, Sony and Memorex) used an inorganic dye.
The organic dye material used on older optical media was essentially biodegradable. If these shoddy discs were stored in poor conditions with high humidity, direct sunlight, etc. they would begin to rot from the inside out.
The majority of discs manufactured after ~2000-2005 had already migrated their manufacturing techniques to strictly create discs using the synthetic dye material. At this point, for data rot to occur, you'd have to be using cheap dollar store blanks.
Data rot on discs using a synthetic dye material is such a statistical anomaly I consider it to be a myth. I have CDs and DVDs from the 90s that fire right up every single time. The only rot I have ever experienced on optical media were from China's highest quality bambooseum CD blanks.

LDs, on the other hand, do not use any dye layers. They are sheets of stamped metal (aluminum) sandwiched between acrylic, polycarbonate, or glass.
Aluminum is extremely resistant to oxidization, even when exposed to the elements. In our case, the aluminum is essentially suspended in resin, away from the elements and moisture of the air.

In theory, LDs may be second to M discs in terms of longevity.

Boy are you wrong.

Was that AI generated? I can only imagine being that wrong if Chat GTP was used. LD rot has been known to be a real thing since before it was even retail technology. Nearly every user here has seen rot first hand. You will convince NOBODY that LDs don’t rot. The term “rot” was invented for LD. “Laser rot” gave way to “disc rot” when the same thing started happening to CDs and DVDs.

LDs are not stamped metal discs. They are plastic. The aluminum is only a coating.

Saying that aluminum is extremely resistant to oxidation…again this is so hugely wrong. Any raw aluminum you see *is* oxidized. It oxidizes when exposed to air. It’s this layer of oxidation that prevents further oxidation. If an aluminum object is put in a situation where it can’t maintain that protective layer of oxidation (because of physical or chemical wear) the oxidation will begin to erode the surface finish until it’s powdery and eventually until the entire object is powder.

Blanks?
Your whole explanation is about CD-Rs and DVD-Rs.

Didn't know you had a LaserDisc recorder at home.

My whole collection of HDDVDs beg to differ with you => they mostly died from rot/oxidation and we're talking 2006~2008.

Julien

Recently I went to play a DVD, the US version of the 2009 Mazinger Z reboot (Shin or The Impact) which is a show I absolutely love. The player rejected it. I looked closely at the disc and found it was cracked, in a straight line from the hole and about an inch inward, essentially cutting the TOC area and more in two. This is why it didn’t play.

I thought maybe it cracked as I was removing it from the case but the case is one that let’s go pretty easily. I looked at the other three DVDs…disc 3 and 4 were fine but disc 2 was cracked the same way before I even took it out. The show has been watched through just once back when it was released. It played fine and went back into the case where it has sat in the same cool dry room with 100 other DVDs that play fine for years. The stuff just…exploded for no reason at some point.

So no, I’m not worried about my LDs. Certainly not any more than any other format.

Also I’m looking for any other pressing of this show because mine is deader than an LD sandwich made out of two Erasers and a Dante’s Peak.

Interesting to see this:

Queen: The Highlander Selection [EM-CDV-2]

at around 4:35 - only 50 ever made apparently, and now worth a pretty penny:

https://www.discogs.com/release/3869827-Queen-The-Highlander-Selection

Chance of rot on that…maybe %95+?

While I've never had any cracked DVDs, I have had very tight center holders on DVDs and try to make them smaller
so it will come out easier.
Mostly these are from HK import DVDs with those tray cases, some USA series with tray cases too have them.
Some of these tighter trays make it harder to get the DVDs out and I'm scared of breaking the discs.

I can understand this well. In the late 1980s when I was buying laser discs (new) and being very fanatical about their quality, I got one or more with the "vertically rolling snow bar" that was the hallmark of bad discs then. Of course I always exchanged those for good copies.

At some point, perhaps 1997 or later, I found my first --existing-- disc that now had rot on one side. It was "Styx - Caught In The Act".

I found and bought a replacement on Ebay at a reasonable price. And because this, like many or most (all?) Pioneer Music titles, had been re-released later with Digital Sound, I made sure to get that version.

Regarding the general question "Will all of our discs go bad?", it may depend on the definition of "time", as Julien mentioned. I have discs from (likely) 1978, from the very first sales of the format, and they play flawlessly. 2.5 years to go for their fiftieth anniversary.

i've already noticed some decay or in this case, skipping.
my copy of the ultimate OZ has playback issues.

Everything Eventually degrades, but that doesn’t mean we can’t enjoy them now or spend money to extend their life. It’s a hobby and entertainment, not an investment for growth.

Please share your love for the format and work to keep the format alive in Your own way. Don’t be discouraged, but challenged.

How long have you owned it?

Any problems with discs have been well documented in this forum so I know which discs I have which are an issue and thankfully very few. Some I will replace, others i won't. I have discs going back 40 years and they are fine. They'll outlive me by a good margin..... How you store them is important as well...... A temperate climate like mine is great but I suspect living in a country with high temps and humidity where you have to have air conditioning can be problematic....