: The standard English identifier used in international software interfaces and global metadata. subtitle Greek ⇔ Ελληνικά
: Used for styled subtitles, common in anime or complex translations. VTT (.vtt) : The standard for web-based video players. 5. Summary Table English Label Native Label (Endonym) Term Ελληνικά ISO 639-1 Code Typical Encoding UTF-8 / ASCII UTF-8 / Windows-1253 Script
: Older subtitle files (like .srt ) often used ISO-8859-7 (Greek) or Windows-1253 . If a player is set to English but the file is encoded in Windows-1253, the Greek text will fail to render unless the encoding is manually adjusted. 3. Translation and Localization (TL)