What does this format store?+
This entry groups Kodak’s DCR and KDC extensions according to the canonical registry. They identify raw camera files, not one universally identical encoding. The image data and Kodak-specific metadata need a reader that understands the originating camera; preserving the original is particularly useful when revisiting older digital photo archives.
How does compression affect quality?+
ExifTool and LibRaw document DCR/KDC recognition and camera support. They do not justify one global bit depth or compression claim across both extensions. Treat the registry group as navigation identity while retaining the actual file type and model for processing.
Are DCR and KDC interchangeable extensions?+
No. Their grouping here is a product registry choice. Keep the original extension and camera identity; renaming does not make one raw representation decode as the other.
What should I check before opening the file?+
Check the exact camera model and recording mode in the processor’s support list. Raw support is model-specific, even when the extension is recognised. Viewing an embedded JPEG preview does not prove the sensor data has been decoded.
What changes when I export to another format?+
Raw-to-image export develops the data: white balance, colour mapping and tone become part of the pixels. Grayscale, palette and SDR targets can discard additional information. Keep the original; converting a rendered image back into a raw container cannot reconstruct the capture.
When is this format useful?+
Use the raw original for repeated photographic development when exposure interpretation and colour decisions need to remain flexible. Export JPEG for an opaque delivery image or a suitable high-precision raster for further editing. Those exports bake in processing choices and cannot recreate the original sensor data, calibration or all vendor metadata.