Ensure you have both the .jar (the application) and sometimes the .jad (the descriptor) files.
: Common community archives for historical J2ME software (search these platforms directly for "KD Player 320x240"). Are you trying to run this on an original mobile phone modern PC/Android KD Player - for your mobile phones (java) - SE, Nokia etc.. Download Video Player 320X240 .jar
Java phones have very strict heap memory limits (often just 2MB to 4MB of operational RAM). If you get this error, close all background apps, reboot the phone, or lower the bitrate of the video you are trying to play. Ensure you have both the
Must be encoded at low bitrates (usually under 500 kbps) and a strict 30fps or 15fps limit. Java phones have very strict heap memory limits
A .jar file is a Java Archive format used by older mobile operating systems to run applications. The numbers 320x240 refer to the (320 pixels wide by 240 pixels high). This landscape orientation was the absolute standard for mid-to-late 2000s feature phones.
If you are looking for specific apps to use on an older mobile device (like a Nokia S40/S60 or Sony Ericsson), these were the most reliable options:
| Player Name | Key Features | Notes | | :--- | :--- | :--- | | | Supports AVI, MP4, and 3GP. Small memory footprint with a simple, quick-start interface, plus a browse folders feature. | Available at GetJar (download may be disabled) | | KD Player | Initially an audio player, later adapted for video on 320x240 screens. Supports playlists, shuffle/repeat modes, ID3 tags, and volume control. | Community modifications available (e.g., "Windows Media Player 10" for 320x240) | | JPlayer Classic (PC/Mac) | Supports MOV, MPG, MP3, WAV, OGG on desktop. Features full-screen mode, skins, and snapshot capture. | Note: 21 MB desktop app; may not run on older feature phones | | SurePlayer (PC/Mac/Linux) | Ultra-light, open-source MPEG-1 player. Only 99.52 KB and requires no preinstalled viewer software besides a browser. | Note: 100% GPL-licensed; designed for desktop use |