If you have a lot of flash material that you want to import, or you have files that are too large to upload via HTTP, then you might want to use the flash node import feature. This can be found under Administer > Content management > Import flash.
The import routine lets you get round your PHP upload limit provided you can put the files on your server by some other mechanism, such as FTP. Because it scans for all files that are not already in the database you can rapidly import many swf / flv / mp3 files in one go. You can choose to have imported content set to be published, or unpublished, depending whether you want to edit the content before making it available.
When an import is requested flash node will scan the flash directory (usually located under files/flash, unless the default has been changed) and it will recurse in to any sub-directories, but it will exclude any directory it finds called temp.
The import page will then provide a list of all the files (irrespective of extension) that were found. Check those that are to be imported and then click 'Import checked files'. A confirmation form appears - click the Import button to start the import.