How quickly do cassettes degrade?

[Yeeterkeeter]

About a month ago, I got myself a REM Automatic for the People cassette tape. One distinguishing feature of that Cassette was its transparent tape, but it worked fine so I disregarded it. Recently, I checked the tape, and I found that the tape had turned a more common brown color. I haven't noticed any sound quality decrease (at least quality decrease that I notice) so I am setting it aside as a non-issue for now. Is the brown tape a sign of the tape degrading, or is it something else?

 

[nakmandan]

Never heard of transparent magnetic tape. Are you sure you aren't talking about the clear leader tape at the beginning and end? Type I magnetic tape is brown, and shades of brown, depending on the formulation. I've also never heard of tape changing color as it degrades. Only shedding particles, which if completly shed, will reveal a completely clear base stock. But any tape like that is condemned to the dumpster. As long as they are stored in moderate conditions and completely wound, most tapes can last decades with virtually no impact on their performance.

 

[Yeeterkeeter]

Never heard of transparent magnetic tape. Are you sure you aren't talking about the clear leader tape at the beginning and end? Type I magnetic tape is brown, and shades of brown, depending on the formulation. I've also never heard of tape changing color as it degrades. Only shedding particles, which if completly shed, will reveal a completely clear base stock. But any tape like that is condemned to the dumpster. As long as they are stored in moderate conditions and completely wound, most tapes can last decades with virtually no impact on their performance.

You’re probably right. I will go rewind the tape all the way, to see if it’s just the leader tape

 

[Mr. Cassette]

As someone who owns thousands of tapes I second Nakmandan‘s post. To try and answer your broader question of “how quickly do cassettes degrade?” There are a lot of variables, but a commercial cassette produced after 83 and not showing signs of extreme wear or signs of abuse, i.e. brittle plastic or moisture having gotten inside of the shell, shouldn't dégrade on its own in only a few years. I would assume your REM tape could easily last another thirty years if stored properly and played occasionally, to keep the mechanics fluid. If you want to play the tape constantly the band will wear down faster, but it shouldn’t degrade on its own.
I avoid buying tapes made pre 1980. I find they have too many mechanical problems and the chemical formula for the bands wasn’t as good as the later tapes. But for more “modern” cassettes the main cause of degradation will be mechanical wear or failure, and that will depend on regularity of use and storage conditions.

 

[Bone Yard]

While I tend to not like REM at all, I still crank Man on the Moon when I hear it, Andy Kaufman was the fashizzle for awhile. I do have several REM Tapes and Cassettes, luckily I grabbed them when they were still dirt cheap.

I don't have thousands of tapes yet, I have thousands of boomboxes, or do I? Yea you were looking at the leader tape from the bottom, in later years this was changed to an opaque white version that would clean the head for a second. Now this portion might actually turn a dirty brown or black from cleaning the transport over time.

 

[Yeeterkeeter]

@nakmandan you were right, it was the leader tape

 

[Doghouse]

Depends.

This one I've had for forty years. The label says "Timeless Original Recordings."
The background noise is my little Lumix camera.

 

[N0rt0n]

I have cases of 35+ y/o cassettes that still play and sound great. 98% are higher quality tapes I recorded albums or CDs to for car play mostly. Now I play ones I don't have the album or CD anymore. Pre Recorded tapes were never great quality but if cared for properly, they last