Good afternoon I could explain that there is difference between the VSA001A version with the VSA001R version thanks pardon for the translation Hug from Argentina
Whats the difference between VSA001A and VSA001R? VSA001A seems to be empty when opened in Homeport. I had original VSA001R V16.0 in a single IMG file and it seems to be about 1GB larger than this VSA001R alone.
This new HD chart consists of two img-files with different internals. In the present instance A-file contains 1-foot HD fishing contours, which are supported only by new marine devices. You have to put both files into the device together to see all the details of the chart in full.