diff --git a/src/floppy/fdd_pcjs.c b/src/floppy/fdd_pcjs.c
index f96af5c5f..b7b3cc69d 100644
--- a/src/floppy/fdd_pcjs.c
+++ b/src/floppy/fdd_pcjs.c
@@ -276,7 +276,7 @@ int json_parse(pcjs_t *dev)
     }
 
     /* Read and null terminate */
-    fread(buffer, sizeof(char), numbytes, dev->fp);
+    (void) !fread(buffer, sizeof(char), numbytes, dev->fp);
     buffer[numbytes] = '\0';
 
     cJSON *parsed_json = cJSON_Parse(buffer);
@@ -305,7 +305,6 @@ int json_parse(pcjs_t *dev)
 
     const cJSON *each_track = NULL;
     int total_c = 0;
-    int full_count = 0;
 
     /* The diskData array is essentially [c][h][s] */
     /* Start with the tracks in [c] */
@@ -422,7 +421,6 @@ int json_parse(pcjs_t *dev)
                 }
 
                 total_sectors++;
-                full_count++;
                 dev->calc_total_sectors = total_sectors;
                 /* End sectors */
             }
diff --git a/src/qt/dummy_cdrom_ioctl.c b/src/qt/dummy_cdrom_ioctl.c
index cb0824675..5c533b216 100644
--- a/src/qt/dummy_cdrom_ioctl.c
+++ b/src/qt/dummy_cdrom_ioctl.c
@@ -167,8 +167,6 @@ plat_cdrom_get_audio_track_info(UNUSED(int end), int track, int *track_num, TMSF
 int
 plat_cdrom_get_audio_sub(UNUSED(uint32_t sector), uint8_t *attr, uint8_t *track, uint8_t *index, TMSF *rel_pos, TMSF *abs_pos)
 {
-    long size = 0;
-
     *track = 1;
     *attr = 0x14;
     *index = 1;
@@ -197,10 +195,6 @@ plat_cdrom_get_sector_size(UNUSED(uint32_t sector))
 int
 plat_cdrom_read_sector(uint8_t *buffer, int raw, uint32_t sector)
 {
-    int  status;
-    long size   = 0;
-    int  buflen = raw ? RAW_SECTOR_SIZE : COOKED_SECTOR_SIZE;
-
     plat_cdrom_open();
 
     if (raw) {
diff --git a/src/unix/dummy_cdrom_ioctl.c b/src/unix/dummy_cdrom_ioctl.c
index cb0824675..5c533b216 100644
--- a/src/unix/dummy_cdrom_ioctl.c
+++ b/src/unix/dummy_cdrom_ioctl.c
@@ -167,8 +167,6 @@ plat_cdrom_get_audio_track_info(UNUSED(int end), int track, int *track_num, TMSF
 int
 plat_cdrom_get_audio_sub(UNUSED(uint32_t sector), uint8_t *attr, uint8_t *track, uint8_t *index, TMSF *rel_pos, TMSF *abs_pos)
 {
-    long size = 0;
-
     *track = 1;
     *attr = 0x14;
     *index = 1;
@@ -197,10 +195,6 @@ plat_cdrom_get_sector_size(UNUSED(uint32_t sector))
 int
 plat_cdrom_read_sector(uint8_t *buffer, int raw, uint32_t sector)
 {
-    int  status;
-    long size   = 0;
-    int  buflen = raw ? RAW_SECTOR_SIZE : COOKED_SECTOR_SIZE;
-
     plat_cdrom_open();
 
     if (raw) {