CorePlayer Mobile for OS X is the world's most efficient video player
for Macintosh computers which are based on the PowerPC G4/G5 with
AltiVec.
Due to its history as a video player for cell phones, it has an
extremely well-tuned video playback engine, making it the video player
with the fastest codec for H.264 AAC videos. But it has on the down
side a very limited support for other video formats and awkward to use
GUI.

It is very useful to play all the 720p/1080p videos on older PPC Macs
that would not run without massive frame drops otherwise. It is
capable of playing 1080p H.264 AAC on a Power Mac G4 MDD with no
dropped frames at about 65-70% CPU.

It was never ported to the new Intel-based Macintosh and was
discontinued in 2012.

Attention: Only cracked binary of this software is runnable !
(original binary is here for archival purposes only)

Each version of CorePlayer was locked to the Mac serial number that
was given by the buyer. The original binary works on all Macs, it only
needs a SN matching the Mac hardware ID serial number. Some nice
person was successfully to crack that lock protection (see [here][1] )
and produced the cracked binary above.

Here are some serial number pairs that were donated to help the
cracking efforts:

Mac SN: CK412J6WQVH
CorePlayer SN: SGULKB-UCZH1R-C8EUYU-F150UG-D8UGKK

Mac SN: 4H6110M0SE7
CorePlayer SN: G4R3VB-92L054-CP6C4R-H8SSLZ-DVRZVV

Mac SN: W86050ZMSX0
CorePlayer SN: P808GP-6C05XL-Q6TFT0-TN9VG4-R404GG

The 1st download is CorePlayer Mobile for OS X 1.3.6 (original
version).
The 2nd download is CorePlayer Mobile for OS X 1.3.6 (cracked
version).

Links:
[Wayback Machine - Former Homepage of CorePlayer][2]
[PowerPC Liberation - A summary of players][3]
[YouTube - Comparison of 1080p H.264 video playing with CorePlayer
1.3.6 vs VLC 0.9.10 vs QuickTime 7, running on an iBook G4, 1.33 GHz,
1.5 GB RAM ][4]
[MacRumours Forum - CorePlayer is no more! RIP][5]
[PowerPC Liberation - Warning: Don't attempt to buy CorePlayer!][6]

Compatibility
Architecture: PPC

Power Macintosh
Mac OS X

  [1]: http://forums.macrumors.com/threads/coreplayer-is-no-more-rip.1397374/page-5#post-22765728
  [2]: https://web.archive.org/web/20120318104314/http://www.mobihand.com/130/homesoftware.asp
  [3]: http://powerpcliberation.blogspot.de/2016/01/a-summary-of-players.html
  [4]: https://www.youtube.com/watch?v=aHhWsrWz2Ns
  [5]: http://forums.macrumors.com/threads/coreplayer-is-no-more-rip.1397374
  [6]: http://powerpcliberation.blogspot.de/2012/09/warning-dont-attempt-to-buy-coreplayer.html