Several years ago I noticed that some of my .JPG files would sometimes cause recent (at the time) versions of Digital Photo Professional to crash. (This was before DPP4; I think it was even before DPP3.) I reported the problem to Canon, but they just sort of hemmed and hawed, the ultimate message being that they either couldn't reproduce the problem or couldn't be responsible for non-conforming JPEGs - notwithstanding the fact that the images had been worked on only with editors that they wrote or provided with their cameras at the time. That problem has continued and been a nuisance to me ever since, over countless DPP revisions. (Less of a nuisance that it could have been, to be sure, because I now shoot only in RAW.)
But now I may have come across a way to demonstrate the problem, or one similar to it, rather definitively. This image was taken in October of 2005 with a Powershot G5. It is, I believe, exactly as it came from the camera. (It had contained a reversible edit, a non-standard crop, but I removed it.) DPP 3.15.0.0 opens the file without complaint; DPP 4.6.10.0 refuses to open it and displays it only as a large question mark. At a minimum, this seems to indicate that DPP4 contains a bug that DPP3 either doesn't have or doesn't exhibit consistently. Whether it's related to my longstanding problem with the editor crashing isn't clear, but I think one has to suspect that it is.
So has anyone else seen anything similar? Moderators, is Canon willing to look into this? (The image is in my public album. My editing attempts took place on a rather powerful Lenovo laptop running Windows 10.)
@RobertTheFat wrote:Several years ago I noticed that some of my .JPG files would sometimes cause recent (at the time) versions of Digital Photo Professional to crash. (This was before DPP4; I think it was even before DPP3.) I reported the problem to Canon, but they just sort of hemmed and hawed, the ultimate message being that they either couldn't reproduce the problem or couldn't be responsible for non-conforming JPEGs - notwithstanding the fact that the images had been worked on only with editors that they wrote or provided with their cameras at the time. That problem has continued and been a nuisance to me ever since, over countless DPP revisions. (Less of a nuisance that it could have been, to be sure, because I now shoot only in RAW.)
But now I may have come across a way to demonstrate the problem, or one similar to it, rather definitively. This image was taken in October of 2005 with a Powershot G5. It is, I believe, exactly as it came from the camera. (It had contained a reversible edit, a non-standard crop, but I removed it.) DPP 3.15.0.0 opens the file without complaint; DPP 4.6.10.0 refuses to open it and displays it only as a large question mark. At a minimum, this seems to indicate that DPP4 contains a bug that DPP3 either doesn't have or doesn't exhibit consistently. Whether it's related to my longstanding problem with the editor crashing isn't clear, but I think one has to suspect that it is.
So has anyone else seen anything similar? Moderators, is Canon willing to look into this? (The image is in my public album. My editing attempts took place on a rather powerful Lenovo laptop running Windows 10.)
I have since re-visited this issue using DPP 4.6.30 and am unable to reproduce the editing problem described above. It appears that the problem may have been corrected in the later version. I mention it now because there are one or two ongoing threads describing superficially similar problems with DPP 4.
