[Typo3-dev] increasing size of $TCA database field

[wes currier]

I have been using Roberts flash load extension and have run into a problem where I call a flash movie that has streaming audio. The audio file is 
larger than one meg and therefore throws an error due to the max-size of the blob file in the database. Is there a way to increase the max size of one 
field in the table without damaging the data that is currently stored there? In looking at his $tca.php file I could raise the limit to 3 meg and 
compare the file to what exists but, would I loose data?

wes