Convert SUP Subtitles to CSV Format
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About SUP
The SUP format is a generic container for image-based subtitles, most commonly associated with DVD and Blu-ray discs. On DVDs, these are called VobSub (.sub/.idx), and on Blu-rays, they are PGS (.sup). In both cases, the subtitles are stored as a stream of images, not as text. This ensures consistent visual appearance across all players but makes them large and impossible to edit as text.
About CSV
CSV (Comma-Separated Values) is a simple text format for storing tabular data. In the context of subtitles, it's often used for translation workflows or bulk editing. Each row in the CSV file can represent a subtitle cue, with columns for the start time, end time, and text. It's easy to open and edit in any spreadsheet program like Excel or Google Sheets.
SUP vs CSV
| Feature | SUP | CSV |
|---|---|---|
| Styling Support | true | false |
| Positioning Support | true | false |
| Animation Support | false | false |
| Learning Curve | expert | beginner |
| Quality Rating | 5 | 3 |
| Patent Status | industry standard | open standard |
| Year Introduced | 1997 | 1972 |
Frequently Asked Questions
What's the difference between PGS and SUP?
PGS is a specific type of SUP stream used for Blu-ray discs. 'SUP' is often used more generically to refer to any image-based subtitle stream, including those from DVDs (which are technically VobSubs). Our converter correctly identifies and handles these different image-based formats.
How do I convert a SUP file to SRT?
Converting an image-based format like SUP to a text-based format like SRT requires Optical Character Recognition (OCR). This process involves software scanning the images of the subtitles and attempting to recognize the characters to convert them back into text. The accuracy can vary depending on the quality and font of the subtitles.
Can I use a CSV file directly as a subtitle?
No, a CSV file cannot be used directly as a subtitle track in a video player. It's an intermediate format. You would need to convert the CSV file into a standard subtitle format like SRT or VTT after you have finished your edits or translations.
What is the best use case for CSV subtitles?
CSV is ideal for workflows where non-technical users need to edit or translate subtitle text. Giving a translator a simple spreadsheet is much easier than asking them to edit the strict syntax of an SRT or VTT file. It's also great for programmatically managing subtitle data.
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