https://nb.hazemalderay.com/en/blog/NB Player guidesenhttps://nb.hazemalderay.com/en/blog/offline-media-player/https://nb.hazemalderay.com/en/blog/offline-media-player/A practical NB Player guide to offline playback: local files versus streaming, opening media, organizing your library, and checking file access.https://nb.hazemalderay.com/en/blog/open-video-from-files/https://nb.hazemalderay.com/en/blog/open-video-from-files/How to open local videos from an Android file manager in NB Player, and what to check when the app is missing or a file cannot be accessed.https://nb.hazemalderay.com/en/blog/background-audio-and-sleep-timer/https://nb.hazemalderay.com/en/blog/background-audio-and-sleep-timer/Use NB Player’s queue, playback speed, sleep timer and progress slider, with a clear distinction between seeking and device volume.https://nb.hazemalderay.com/en/blog/organize-local-library/https://nb.hazemalderay.com/en/blog/organize-local-library/A practical NB Player workflow for organizing local media and choosing between folders, search, favorites and the listening queue.https://nb.hazemalderay.com/en/blog/arabic-subtitles-and-sync/https://nb.hazemalderay.com/en/blog/arabic-subtitles-and-sync/Choose a local subtitle file, troubleshoot Arabic characters, and adjust subtitle delay when text and dialogue do not line up.https://nb.hazemalderay.com/en/blog/video-without-sound/https://nb.hazemalderay.com/en/blog/video-without-sound/A focused checklist for media volume, audio output, track selection, file integrity and codec problems when a video has no sound in NB Player.