What is a .SIDN file?
The .SIDN file is a type of data file specifically used by iTunes, which is a program designed to manage and play multimedia content. This file contains authorization data that helps iTunes verify that the user has the right to play purchased songs on their Windows computer. It is closely related to other file types like .SIDB and .SIDD, which are used for similar purposes in iTunes.
Typically, a .SIDN file is not meant to be opened directly by users. Instead, it functions in the background to ensure that the music or media content purchased by a user is properly authorized for use on their specific account.
For users of Windows 7 and Windows 8, these .SIDN files are usually stored in the directory path: C:\ProgramData\Apple Computer\iTunes\SC Info\. On Windows XP, the files are saved in: C:\Documents and Settings\All Users\Application Data\Apple Computer\iTunes\SC Info\.
It's important to note that Apple iTunes, the program that traditionally opens these files, has been discontinued. However, if there were issues with iTunes not opening or playing purchased content, one troubleshooting step was to delete the .SIDN file along with related .SIDB and .SIDD files from the directories mentioned above. After deleting these files, restarting the computer and reopening iTunes could resolve the issue.
In summary, .SIDN files are essential for the authorization process in iTunes on Windows computers, ensuring that only legally purchased songs are played. They are not intended for manual user interaction and are handled automatically by the iTunes software.
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