Help! Is my wine still good to drink?

[justingma]

I have a bottle of wine bought for me in 1980 and I was wondering if it's still good. In other words, I know wine can become more fine with age, but is 27 years too much??? The wine is:

Banyula Grand Cru
Mas De La Serra
1980

If you post a reply, please also email justingma@aol.com if you don't mind! Thanks!