Skip to Main Content

TAMU-CC Repository

This guide contains information and policies regarding the TAMU-CC Repository.

Recommended Formats

File formats for digital content: High to low probability for full long-term preservation. For more information on preservation, please see "Preservation" tab. 
Content Type High Medium Low
Audio and Audio (MIDI)
  • AIFF (PCM) (.aif, .aiff)
  • WAV (PCM) (.wav)
  • Broadcast WAV (PCM) (.wav, .bwav)

For music:

  • 24 bit, 96 kHz or better

For speech:

  • 16 bit, 44.1 kHz or better

For music:

  • AIFF (PCM) (.aif, .aiff)
  • WAV (PCM) (.wav)
  • Free Lossless Audio Codec (.flac)
  • Apple Lossless (.m4a)

For speech:

  • Advance Audio Coding (.mp4, .m4a, *.aac)
  • MP3 (MPEG-1/2, Layer 3) (.mp3)
  • MP2 (MPEG-1 Audio Layer II) (.mp2)
  • 128 kbps (mono),
  • 256 kbps (stereo) or better, 44.1 kHz,
  • variable bit rate settings off if possible.
  • AIFF or WAV preferable.

Audio (MIDI)

  • Standard General MIDI (.mid, .midi), original or Level 2, Universal SysEx commands only, instruments well documented
  • Advance Audio Coding (.mp4, .m4a, .aac) for music
  • MP3 (MPEG-1/2, Layer 3) (.mp3) for music
  • MP2 (MPEG-1 Audio Layer II) (.mp2) for music
  • Ogg Vorbis (.ogg) AIFC (compressed) (.aifc) - NeXT SND (.snd)
  • RealNetworks 'Real Audio' (.ra, .rm, *.ram)
  • Windows Media Audio (.wma)
  • Protected AAC (.m4p) - WAV (compressed) (.wav)

Audio (MIDI)

  • Any other MIDI file not listed here
Computer Programs
  •  Uncompiled computer program source code (*.c, *.cpp, *.java, *.js, *.jsp, *.php, *.pl, *.py, etc.)
  •  Compiled / Executable files (EXE, *.class, COM, DLL, BIN, DRV, OVL, SYS, PIF)
Geospatial Data
  • Geo-Referenced TIFF (.tiff), ESRI Shapefile (.shp, .shx, .dbf), Keyhole Markup Language (.kml)
   
Image: Raster and Vector

Raster

  • Full color @ 600dpi or higher:
  • JPEG2000 Lossless (.jp2)
  • TIFF 24-bit, uncompressed (.tif, .tiff)

Vector: 

  • Open Document Graphics (.odg)

Raster

  • JPEG (.jpg, .jpeg)
  • JPEG2000 lossy compressed (.jp2)
  • PNG (.png)
  • TIFF lossy compressed (.tif, .tiff)

Vector

  • Scalable vector graphics (.svg)

Raster

  • GIF (.gif)
  • Macintosh Graphics (.pict)
  • Photoshop document (.psd)
  • All other image formats not listed here

Vector

  • Illustrator document (.ai)
  • Photoshop document (.psd)
  • All other image formats not listed here
Presentation
  • Interactive
  • Open Document Presentation (.odp)
  • Static (images only)
  • PDF/A Animated - See video guidelines
  • PDF other than PDF/A (.pdf)
  • PowerPoint XML (.pptx)
  • PowerPoint (.ppt)
  • Keynote (.key)
  • HTML (.htm, .html)
Spreadsheet/ Database
  • Open Document Spreadsheet (.ods)
  • Excel XML (.xlsx)
  • Comma separated value CSV (.csv)
  • Tab-delimited text file (.txt)
  • Excel (.xls)
  • Numbers (.numbers)
Text
  • UTF-8 Unicode text (.txt)
  • Open Document Text (.odt)
  • PDF/A
  • XML (includes XSD/XSL/XHTML, etc.; with included or accessible schema)
  • Word XML (.docx)
  • Rich Text Format (.rtf)
  • PDF other than PDF/A (.pdf)
  • Cascading Style Sheets (*.css)
  • DTD (*.dtd)
  • Plain text (ISO 8859-1 encoding)
  • HTML (include a DOCTYPE declaration)
  • SGML (*.sgml)
  • Open Office (*.sxw/*.odt)
  • Word (.doc)
  • HTML (.htm, .html)
  • Pages (.pages)
  • All other text formats not listed here
Video
  • -AVI (uncompressed, motion JPEG) (.avi)
  • QuickTime Movie (uncompressed, motion JPEG) (.mov)

Recommendation: Maintain original resolution of video and audio

  • MPEG-1, MPEG-2 (.avi, .mpg, .mpeg, .mov)
  • MPEG-4 ASP (.avi, .mkv, .mp4,)
  • MPEG-4 H.264 (.avi, .mkv, .mp4, .mov,)
  • Ogg Theora (.ogg)

Standard Definition recommendations:
720x486 pixels, 2.5Mbits/second for MPEG-4; 5Mbit/second for MPEG-2. Audio 448kbit/sec, 16 bit, 44.1kHz.

High Definition recommendations:
1920x1080 pixels, 8 to 15 Mbit/s. Audio 16 bit, 44.1kHz

  • 3GP (.3gp, .mp4)
  • Flash Video (.flv, .f4v)
  • MPEG-4 ASP (Divx, Xvid) (.avi)
  • MPEG-4 H.264 (DRM protected) (.m4v, .mp4)
  • RealNetworks 'Real Video' (.rv)
  • Windows Media Video (.wmv) 
Virtual Reality/ 3D
  • X3D (.x3d)
  • VRML (.wrl, .vrml)
  • U3D (Universal 3D file format)
  • STEP (ISO 10303) (.stp .step)
  • IGES (NBSIR 80- 1978/ASME Y14.26M) (.igs, .iges) for basic geometry only
All other formats not listed.