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Image MIME Reference
CNS-INF2

Comverse Network Systems INF2 Image

image/vnd.cns.inf2
VS

Adobe Photoshop Document

image/vnd.adobe.photoshop
PSD

A complete technical comparison of Comverse Network Systems INF2 Image and Adobe Photoshop Document — covering compression, feature support, browser compatibility, magic bytes, and when to choose each format.

Equal browser support

Feature Support

Feature CNS-INF2 PSD
Transparency (Alpha) ✕ No Yes
Animation Support ✕ No Yes
Progressive Loading ✕ No ✕ No
HDR Support ✕ No Yes
EXIF Metadata ✕ No Yes
ICC Color Profile ✕ No Yes
Comverse Network Systems INF2 Image
image/vnd.cns.inf2
Extension
.inf2
Container Proprietary Comverse Container
Compression Proprietary
Algorithm
Unknown (Proprietary Telecom Encoding)
Color Depth Unknown
Developed by Comverse Network Systems (Ann McLaughlin)
Released 1999
Magic Bytes
Unknown (Proprietary)
Full CNS-INF2 reference →
Adobe Photoshop Document
image/vnd.adobe.photoshop
Extension
.psd.psb.pdd
Container Adobe Photoshop Document (PSD/PSB)
Compression Uncompressed / RLE (Run-Length Encoding) / ZIP
Algorithm
RLEZIP (with or without prediction)None
Color Depth 1-bit (Bitmap), 8-bit, 16-bit, 32-bit (Float/HDR)
Developed by Adobe Systems
Released 1990
Magic Bytes
38 42 50 53
Full PSD reference →

Browser Support Comparison

Browser CNS-INF2 PSD
Chrome Chrome
✕ ✕
Firefox Firefox
✕ ✕
Safari Safari
✕ ✕
Edge Edge
✕ ✕
IE IE (Legacy)
✕ ✕
CNS-INF2

CNS-INF2 Strengths

  • Historically allowed Comverse to standardize media transmission internally across their global telecom messaging platforms
Limitations
  • Completely obsolete and non-functional outside of decommissioned telecom infrastructure
  • Undocumented, closed-source binary structure
  • Zero support in modern image processing libraries like ImageMagick, libvips, or FFmpeg
PSD

PSD Strengths

  • The undisputed global standard for layered raster graphics and non-destructive image editing
  • Supports incredibly complex compositions combining raster data, vector shapes, live text, and adjustment layers
  • Full support for advanced color spaces (CMYK, Lab, multi-channel) and 32-bit floating-point HDR workflows
Limitations
  • Proprietary format: while the specification is published, complete feature-parity is rarely achieved by third-party software (e.g., smart objects and complex layer styles often break)
  • Files can reach enormous sizes (gigabytes) due to the preservation of unflattened, high-resolution layer data
  • Zero support for native rendering in web browsers or standard mobile image viewers

When to choose which format

CNS-INF2
Use CNS-INF2 when…
  • Legacy Telecom Infrastructure
  • Historical Comverse Unified Messaging Systems
  • Proprietary Server-to-Server Media Exchange
PSD
Use PSD when…
  • Professional Photo Retouching
  • Digital Painting and Illustration
  • UI/UX Design Workflows
  • Graphic Design and Print Production

More comparisons

CNS-INF2 vs ACES → PSD vs ACES → CNS-INF2 vs APNG → PSD vs APNG → CNS-INF2 vs AVCI → PSD vs AVCI → CNS-INF2 vs AVCS → PSD vs AVCS → CNS-INF2 vs AVIF → PSD vs AVIF → All comparisons →
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