Metadata

These options define what happens when Opus saves certain metadata to files (via the Metadata Pane or the Edit Metadata command).

• Write APE tags: When writing metadata to MP3 files, Opus will save tags in APE format as well as ID3v2.
• Write ID3v1 tags: When writing metadata to MP3 files, Opus will save an ID3v1 tag as well as ID3v2.
• Apply changes automatically in the metadata panel: When this is turned on, any changes you make to the metadata of a file via the panel will be saved automatically when a new file is selected or the panel is closed.
• Update last modified file dates when setting metadata inside files: Normally the modification date of a file is unchanged when Opus saves metadata - if this option is on, the timestamp will be set to the current time. This option deals with metadata changes which are written into the files themselves, where the file format has inherent support for it, such as ID3 tags in MP3 files and EXIF tags in JPG files.
• Update last modified file dates when setting metadata in NTFS ADS: If this option is on, file timestamps will be set to the current time when metadata changes are saved into NTFS ADS (alternate data streams). With this option on, a file's date will change if you place or modify a label on it (if labels are stored in the filesystem rather than a central configuration file). Changes to file descriptions, ratings, and the general "tags" field will also bump a file's date, for file formats where Opus does not have a way to store them in the main file itself (e.g. text files). You would normally want this option off unless you are using a backup tool which preserves NTFS ADS and uses the modified timestamp to decide what to back-up.