Finding Corrupted Chunks?

I've been seeing this error for the past 2 days.

Code:

2011-02-22 17:55:59 [SEVERE] java.io.IOException: Not in GZIP format
2011-02-22 17:55:59 [SEVERE]     at java.util.zip.GZIPInputStream.readHeader(Unknown Source)
2011-02-22 17:55:59 [SEVERE]     at java.util.zip.GZIPInputStream.<init>(Unknown Source)
2011-02-22 17:55:59 [SEVERE]     at java.util.zip.GZIPInputStream.<init>(Unknown Source)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.CompressedStreamTools.a(SourceFile:8)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.World.<init>(World.java:109)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.WorldServer.<init>(WorldServer.java:24)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.MinecraftServer.c(MinecraftServer.java:127)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:118)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:217)
2011-02-22 17:55:59 [SEVERE]     at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)

The server runs fine, the error only shows on startup, and I have daily backups, but if it's possible, I'd like to just regen the few corrupted chunks. Actually, I'm not 100% sure that's the problem, but it seems to be from reading other threads on this forum. Does anyone have any tips or instructions about how to track down and regen corrupted chunks?

 

http://www.minecraftforum.net/viewtopic.php?f=1022&t=127216

 

lol sk89 has a tool or two to help ya

I deleted my corrupted chunks with world edit and the scripting, but it's probably more tedious than the corrupted chunk finder.

 

Thank you very much for the link. Unfortunately, it scanned all 4510 chunks and reported none corrupt. I guess I'm not sure what this error means then.

 

It is an annoying solution but to fix the problem i ignored it for the most part. I also got the plugin that stops world expansion and had people try to explore the current map as much as possible. It seems if the chunk is corrupted and it tries to get loaded it will be replaced with a random chunk. it ended up replacing a chunk right in the middle of an underwater city, but at least the file was fine.