образ диска

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>


const unsigned int bufSize = 524288;//4096;

int main(int argc, char** argv)
{
    //FILE* disk = fopen("\\\\.\\L:","rb");
    FILE* disk = fopen("D:\\temp\\flash\\image.file","rb");
    char buf[bufSize];
    if (disk == NULL)
    {
        printf("Can't open file to read\n");
        getch();
        return -1;
    }
    //FILE* image = fopen("D:\\Image.file","w+");
    FILE* image = fopen("\\\\.\\I:","ab");
    if (image == NULL)
    {
        printf("Can't open file to write\n");
        getch();
        return -1;
    }
    fseek(image,0,SEEK_SET);
    unsigned int i = fseek(image,0,SEEK_SET);
    unsigned int count = 0;
    unsigned int countw = 0;
    int pos1 = 0,pos2 = 0;
    while (/*!feof(disk)*/count = fread(&buf,1,bufSize,disk))
    {
        system("cls");
        printf("%u B | %u KB | %.2f MB\n",bufSize*i+count,
                                        int(float(bufSize*i+count)/(float)1024),
                                        float(bufSize*i+count)/(float)1024/1024);
        pos1 = fseek(image,0,SEEK_CUR);
        if ((countw = fwrite(&buf,1,count,image)) != count)
        {
            printf("Error during writing occured\n");
            printf("Tryeid to write: %d Bytes, but done: %d Bytes",count,countw);
            fclose(disk);
            fclose(image);
            getch();
            return -1;
        };
        pos2 = fseek(image,0,SEEK_CUR);
        printf("pos1: %d, pos2: %d\n",pos1,pos2);
        if (pos1 == pos2) fseek(image,count,SEEK_CUR);
        if (fflush(image) != 0)
        {
            printf("Error during flushing occured\n");
            fclose(disk);
            fclose(image);
            getch();
            return -1;
        };
        i++;
    }
    fclose(disk);
    fclose(image);
    printf("Done. Press any key.\n");
    getch();
    return 1;
}