PRB: "Invalid File Format" from ImgEdt Reading Sony Mavica JPG

• Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, versions 5.0, 6.0

SYMPTOMS

Microsoft Internet Explorer 5.0 and other image programs allow you to successfully view .jpg files that were created using a Sony Digital Camera However, you may receive the following errors if you attempt to use the file in Visual Basic:

Run-time Error 321, Invalid File Format; Unable to display image when using ImgEdit OCX provided within the Wang Imaging Controls suite with Windows 95 or Windows NT 4.0.

Run-time Error 75, Path/File Access Error; Unable to read or write the specified file; Unable to display image within the Kodak Imaging Controls suite with Windows 98.

CAUSE

The following paragraph is from the Eastman Software Web page:

The Sony Mavica Digital Camera generates .jpg files without the required "JFIF" string in the header. The JPEG standard states that an APP0 marker and "JFIF" string, together with the leading SOI marker, make up the header that identifies them as "standard" JPEG/JFIF files. Some applications just recognize the leading "FFD8" SOI marker and do not look for the "JFIF" stamp, thus allowing them to open a wider variety of JPEG files. The Wang Imaging Controls follow the specification, so if the JFIF string is missing, the current versions of Imaging raise an invalid file format error. This error is generated in both Imaging Professional as well as Imaging for Windows. Imaging Professional 2.0 does the more lax "FFD8" check, and so is able to read the Sony Mavica files.

RESOLUTION

Currently, the only workaround is to purchase Imaging Professional 2.0.

REFERENCES

For more information, please refer to the Eastman Software Web site at the following URL:

http://www.eastmansoftware.com/products/ImagingPro/Reading_Room/format.htm

Additional query words:

Keywords : kbVBp kbVBp500 kbVBp600 kbGrpVB
Version : WINDOWS:5.0,6.0
Platform : WINDOWS
Issue type : kbprb