I have a job that is failing with the error
<Line:14222274 / Field:1, Bad character (ASCII 0) encountered. Rest of file not processed.
When you compress what utility did you use?.
I saw this issue when i compressed my csv file in ZIP format ( in windows) . Google BigQuery seems to accept only gzip format.
Make sure to compress your CSV using gzip. If you are in windows 7-zip is a great utility which allows you to compress in gzip.
In Unix gzip is standard.