I'm using version 126.96.36.199 of the plugin, and I've got a 28MB MP3 file that is displayed correctly. Here is the code I'm using I'm using with direct linking:
[attachments orderby="filename ASC" fields="title,caption,size" label=doctitle docid="3160" force_saveas=1 logged_users=1 nofollow=0]
However, when I click the download link, it displays the following error in Chrome:
Error 6 (net::ERR_FILE_NOT_FOUND): The file or directory could not be found.
If I switch the docid back to a small file, it works fine.
Is there a file size limitation for attachments?