2 of 2 grammar orthography

mysqldump dump file size

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?