Portable: Xmalluvideos

"The video plays, but there is no sound." Solution: Your portable device likely doesn't support AC3 or DTS audio codecs. Re-encode the audio track to AAC 2.0 or MP3 using a converter. The Xmalluvideos standard recommends stereo audio for portability.

"The file won't transfer to my iPhone/iPad." Solution: iOS handles files differently. Use a USB-C flash drive with a Lightning adapter, or use a Wi-Fi transfer app like FE File Explorer to move the XMV-P files into VLC's local folder. xmalluvideos portable

"The video stutters or lags during action scenes." Solution: Your device's CPU is too weak for software decoding. Go into your player app settings and force Hardware Decoding . If that fails, reduce the video resolution from 1080p to 720p. "The video plays, but there is no sound