File Types

File Types

1. Images

   • Bitmap
     • JPG
       • Quality is interchangeable
       • Uses lossy compression
       • Files are very small
         • Best for downloading of the internet
       • RGB Color
       • 8 bit color
         • Grayscale
     • Tif
       • Is lossless (LZW compression option)
       • Considered the highest quality
       • Has uncompressed option
       • RGB Color
         • Indexed color option
         • 8 Bit color or 16 bit color option
     • PNG
       • Uses lossless compression
         • Has transparency for 24 bit RGB color images
           • Offers options of TIF
       • RGB Color
         • 8 Bit color or 16 bit color option
     • PSD
       • A layered images file used in photoshop
         • Allows to convert into
           • JPG
           • GIF
           • TIFF
     • GIF
       • Uses Lossless compresssion
       • Has animation option
         • Indexed color option
       • Transparency option
       • Grayscale
     • BMP
       • Known as bitmap image file
       • BMP is a raster graphics image file format used to store bitmap digital images,
       • Uses lossless compression
       • Can be uncompressed
   • Vector
     • SVG
       • Stands for scalable vector graphics
         • XML based
         • Most browsers have some SVG rendering support
       • Used for 2D graphics
         • Can be mad with any text editor
       • Support for interactivity and animation
         • images are scalable
       • Can be zoomed without degradation
     • EPS
       • Stands for Encapsulated PostScript
         • Usually contains a bitmap version of the image
       • Can contain text and graphics

2. Video Files

   • WMV
     • Stands for Windows Media Video
     • Has many compression types
       • was originally designed for Internet streaming applications
     • WMV 9 provides a ompression ratio that is 2x better than MPEG-4, and 3x better than MPEG-2
   • Mpeg-1 and Mpeg-2
     • MPEG-1 is a standard for lossy compressin of bideo and audio
       • Designed to compress VHS quality digital video and cd audio down to 1.5 Mbit/s
         • .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .m1a, .m2a, .mpa, .mpv
       • Most compatable lossy audio and video format
       • Stands for Moving Picture Experts Group
     • MPEG-2
       • Is widely used for digital television signals
         • Is not optimized for low bit-rates (less than 1 Mbit/s)
         • Provides support for interlaced video
       • Uses a lossy compression for audio and video
       • Also used for some DVDs
   • MPEG-4
     • Commonly used to store media types by ISO or IEC
       • Has Advanced Audio Compression, Apple Lossless and a lossy compression
     • Usually has .mp4 exentsion
     • Introduced in 1998
   • MOV
     • Is a MPEG-4 container
       • Uses .mov and .qt extensions
     • Using a compression algorithm by Apple
       • Has less support then MP4
     • Mainly used in Quicktime
   • FLV
     • Stands for flash video
       • Used to play video over the internet
         • Uses H.264 compression (Lossy compression)
       • Two different file formats
         • FLV and F4V
     • Uses Adobe Flash Player version 6 and newer

3. Music

   • MP3
     • File format that is mostly used for downloading on the internet
     • Uses lossy compression
       • Removes all data that humans cant hear
         • Files that are 50MB can be reduced all the way down to 4MB!
   • WAV
     • Its a Waveform Audio File Format
     • High quality
       • Uses .wav .wave extensions
       • Most of the time they are uncompressed
       • The most common format is LPCM
   • AAC
     • It is an audio compression format, Lossy compression
     • Has .m4a, .m4b, .m4p, .m4v, .m4r, .3gp, .mp4, .aac extensions
     • Used for mp3 files
   • OGG
     • Uses .ogg, .ogv, .oga, .ogx, .ogm, .spx, .opus extensions
       • Made for high quality streaming
     • Uses lossy compression
       • But can also use lossless compression
         • But can be uncompressed

4. Document Files

   • DOC
     • Is in the Microsoft Word Binary File Format
     • Is an abbreviation for document
     • Is used in many document programs
   • PDF
     • Stands for Portable Document Format
       • Also means Netware Printer Definition File
     • Created in Adobe Acrobat , Acrobat Capture, ect.
       • Useful for brochures
         • Flyers
         • Articles
       • A PDF file contains one or more page images, each of which you can zoom in on or out from