Famicom Disk System error messages (Question)

[spoon]

I keep getting Disk Trouble err 21 or 22 coming up everytime I try to play a disk. What to they mean, and, how can they be fixed?

[maxlords]

Err. 21 Disk header block(*NINTENDO-HVC*) part is wrong.
Err. 22 Disk header block reecognition #$01 isn't read and cant be ignored.

I don't know what they MEAN or how they can be fixed, but there's tons of info on them online.

http://www.nesworld.com/famidisk.htm#errormessages

[spoon]

Double post, please ignore.

[spoon]

Yeah, I saw those also. I have no clue what number 22 means. I guess I will just have to wait untill the Fami gets here to try it out again. Someone told me that if you try to play pirates (which all the disks I have at the moment are) You canl get those messages.