The file name contains several specific indicators:
Sakis Rouvas (in his film debut), Doretta Papadimitriou, and Kostis Kallivretakis Director: Nicholas Papadopoulos Production: Village Roadshow Films (Greece) Technical Details from Your File
This is the Greek title (often translated as The Companions or The Gang ), which is associated with the band at the center of the story in Alter Ego .
Indicates the source is a retail DVD, which was a standard high-quality format for home media before the widespread adoption of Blu-ray.