I have used mysql-administrator to back up my mediawiki and bugzilla database.
Now there is an issue  with charsets I can't fix.
So I deciced to try mysqldump
with `-single-transaction --routines --triggers`.  My database is a mix of inno and mysiam tables.

I am confused about the different size of the dump files.
While the mysqldump is ~150 MB, the mysqladmin file is ~220MB.
I cannot explain this, and I can't analyze the dump files, it  is too big for my notepad.

I have two questions:

1. What's the cause of the different sizes?
2. Anyone any suggestions about my options to backup?